1. What is an example of physical contamination
a. Sneezing on food
O b. Touching dirty food contact surfaces
c. Bones in fish
d. Cooling tomato sauce in a copper pan
Other:
NOT BIOLOGY BUT HELP
Answers
Answer:
i think the answer is a
Explanation:
hope this helps
Related Questions
The counter-regulatory functions of the pancreas refer to the fact that it____.
a. releases one hormone that increases body temperature (fever) and another that decreases body temperature
b. releases one hormone that reduces glucose level sin the blood and another that increases them
c. releases one hormone that increases urine production and another hormone that reduces urine production
d. releases acetylcholine when a person is calm, and epinephrine when a person is frightened or exercising
e. releases one hormone that increases heart rate and another that decreases heart rate
Answers
The counter-regulatory functions of the pancreas refer to the fact that it releases one hormone that reduces glucose levels in the blood and another that increases them. Here option B is the correct answer.
The pancreas is an organ that plays a crucial role in maintaining glucose homeostasis in the body. It releases two hormones, insulin, and glucagon, that have opposite effects on glucose levels in the blood.
Insulin is a hormone that promotes the uptake and storage of glucose by cells, while glucagon promotes the breakdown of glycogen and the release of glucose into the bloodstream. These two hormones work together to keep blood glucose levels within a normal range and are referred to as the counter-regulatory hormones.
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each winter , ice covers a lake , during this time fish in the lake have a smaller food supply what kind of disturbance is it
Answers
Answer: A natural disruption occurs when ice blocks a lake during the winter, resulting in a decreased food source for fish.
Explanation:
Events or processes known as "natural disturbances" take place in the natural world without human interference and have a big influence on ecosystems. In this instance, the lake's capacity to support fish is constrained by the creation of ice throughout the winter. As a barrier, the ice keeps sunlight from penetrating the water and reduces photosynthesis, and this in turn has an impact on the development of algae and other main producers. As a result, the lake's food chain is thrown off, which has an effect on the number of fish and their capacity to locate enough food.
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Which of these causes evolution?
A. Random mating
B. Natural selection
C. No mating at all
D. Extremely large population sizes
Answers
Natural selection causes evolution. The correct option is B.
What is natural selection?Natural selection refers to the process that leads to the adaptation of organisms to their environment.
Natural selection forces either select for or against traits. Traits that aid organisms in adapting are selected for, while those that do not aid in adaptation are selected against.
Traits that are selected for are allowed to perpetuate in the population while those that are selected against gradually fade from the population.
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**Easy**quick**extra points**
1. Organic compounds contain..
a. carbon and usually other elements.
b. many kinds of elements except carbon.
c. only carbon.
d. only carbon and hydrogen.
Answers
Answer:
A Trust me I'm a genius
Explanation:
I pretty sure it would only make sense to me
PLEASE HELP ME I WILL MAKE YOU BRAINLIEST!!!!!!! Need help with number 31!!
Answers
Explanation:
A is 6H2O
B is C6H12O6
C is 6O2
Which of the following is/are most likely to be part of the gastrointestinal reflex pathway? 1. Stretch receptors 2. Neurons of the autonomic nervous system 3. Muscle fibers of the transversus abdominus.
Answers
The stretch receptors and neurons of the autonomic nervous system are parts of the gastrointestinal reflex pathway.
What is Gastrointestinal reflex?This is usually stimulated by senses as a result of the presence of stretch receptors and neurons of the autonomic nervous system.
They help in controlling the release of acids in the stomach and also suppresses the release of digestive proteins.
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dissolved salt affects surface tension much like alcohol does. would this have any effect on life living on the surface of fresh water versus living on the surface of salt water
Answers
Salt effects of surface tension are of critical importance in many regular phenomena it reasons small droplets of rain to stick to our home windows, creates bubbles while we upload detergent in our sink, and propels water-molecules insects at the surface of ponds.
NaCl salts motivate the growth of surface tension and the residence time of interfacial water molecules. Additionally, they decrease the house time of interfacial n-decane molecules.
Water molecules pull the sodium and chloride ions aside, breaking the ionic bond that held them collectively. After the salt compounds are pulled aside, the sodium and chloride atoms are surrounded by water molecules, as this diagram indicates. as soon as this happens, the salt is dissolved, ensuing in a homogeneous solution.
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what is the other name of iron oxide
Answers
Answer:
Iron(III) oxide or ferric oxide
Explanation:
When stomata are closed during hot weather, Oxygen combines with RuBP and a wasteful process occurs, known as:
a. photo phosphorylation
b. photo transpiration
c. photochemical
d. photorespiration
Answers
Answer:
Photorespiration
Explanation:
.macrophages are a type of ______ that wander the body or stay in one tissue and engulf foreign particles
Answers
Macrophages are a type of immune cell that wander the body or stay in one tissue and engulf foreign particles.
Macrophages are a type of white blood cell or immune cell that plays a critical role in the body's defense against foreign invaders. They are part of the innate immune system, which provides a rapid, nonspecific response to infection or injury.
Macrophages are derived from monocytes, which are a type of white blood cell that circulate in the bloodstream. Once they enter tissues, monocytes differentiate into macrophages and begin to perform their function as phagocytic cells.
Macrophages are known for their ability to engulf and digest foreign particles, such as bacteria, viruses, and other pathogens. They can also engulf and digest damaged or dead cells and cellular debris.
In addition to their role in phagocytosis, macrophages also play a critical role in the immune response by producing and releasing cytokines, which are signaling molecules that help to coordinate the response to infection or injury.
Overall, macrophages are a key component of the immune system and play an essential role in defending the body against foreign invaders.
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plz help!!! Gall flies lay their eggs in developing shoots of the tall goldenrod. When the fly larvae hatch, they release chemicals that cause the plant tissue to swell around the larvae, causing a resultant gall to form. The gall flies are prey for the parasitic wasp that lays its eggs in the smallest galls. After the wasp larvae hatch, they eat the fly larvae. The gall fly is also prey for the downy woodpeckers that feed on the larvae of the largest galls. Which type of natural selection may the gall fly be subject to?
Directional selection
Disruptive selection
Normal distribution
Stabilizing selection
im so confused
Answers
Answer:
stabilizina selection
Explanation:
As given in the question, the galls may be smaller or larger. However the eggs laid in smaller gallsare prey to wasps, hence they are destroyed
Which mRNA sequence complements the DNA sequence below?
The right half of a D N A molecule
Four m R N A molecules
A. Sequence A
B. Sequence B
C. Sequence C
D. Sequence D
Answers
Answer:
sequence c
Explanation:
i just took the biology learning gizmo five questions
Transcription is the process of mRNA synthesis. It occurs in the nucleus before translation. During transcription, RNA bases pair DNA bases, replacing Thymine with Uracyl. You will find the example in the explanation.
Note: The DNA sequence is missing, so I will provide a new sequence and explain the procedure. I suggest you perform the same steps with your molecule fragment and reach the correct mRNA.
Protein synthesisProteins synthesis is done in two stages: transcription and translation. The whole process begins in the nucleus and finishes in the cytoplasm.Protein synthesis initiates in the AUG start codon -Metionin-, and ends when reaching either of the stop codons UAA, UAG, UGA. Once the new molecule is completed, it is sent to its final destiny.Transcription:The first step before protein arrangement is to synthesize messenger RNA, mRNA. This is the transcription process and occurs in the nucleus. When the DNI molecule separates into two strands to form the transcription bubble, we can identify two separate segments: coding strand and template strand. The coding strand goes in direction 5' to 3', while the complementary strand -template strand- grows in direction 3' to 5'. This last segment is the one that is going to be complemented by the mRNA. It is the template strand. A template DNI strand is read in direction 3'→ 5' to build the mRNA molecule that grows in direction 5'→ 3'.During transcription bases forms pairs. RNA replaces Thymine with Uracyl, so pairs are as follows,DNA mRNA
Adenine pairs Uracyl, Thymine pairs Adenine, Guanine pair Cytosine, Cytosine pair Guanine.Translation:
Translation occurs in the cytoplasm. During translation, rRNA reads mRNA in 5' to 3' direction, and tRNA adds the correct amino acid to the growing chain. The first extreme to be translated carries the amino-terminal group, while the other extreme carries the carboxy-terminus group.ExampleWe will consider for this example the following DNA template strand.
DNI strand ⇒ 5'-TAGAACGCCTCGAAATTTCATACT-3'
Transcription
template DNI strand ⇒ 5'-TAGAACGCCTCGAAATTTCATACT-3'
mRNA ⇒ 3´-AUCUUGCGGAGCUUUAAAGUAUGA- 5´
The new mRNA strand is
mRNA ⇒ 3´-AUCUUGCGGAGCUUUAAAGUAUGA- 5´
Once the mRNA synthesis is over, the molecule leaves the nucleus and proceeds with translation in the cytoplasm.
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both neurons and neuroglial cells are capable of cell division. select one: a. true b. false
Answers
The correct answer is option B.
Both neurons and neuroglial cells are capable of cell division. The given statement is false.
Neurons, which are specialized cells responsible for transmitting signals in the nervous system, have limited or no ability to undergo cell division in most cases. Once mature, neurons typically lose their capacity to divide and replace themselves. This limited regenerative ability is one of the reasons why neuronal damage or degeneration can have long-lasting effects.
On the other hand, neuroglial cells, also known as glial cells, are the supportive cells of the nervous system. Some types of neuroglial cells, such as astrocytes and oligodendrocytes, can divide and generate new cells under certain circumstances, contributing to repair processes and maintenance of neuronal function.
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How can a neutral object become negatively charged?
Answers
When electrons are transferred to a neutral object from another, neutral object might then become negatively charged. moving electrons from either negative charges object to a neutral object to negatively charge it.
What is an electron example?The smallest elemental component of an atom, the electron has a negative charge. In a neutral atom, there are an adequate amounts of protons and electrons. One proton and one proton are all that the hydrogen atom has. In contrast hand, the uranium atom possesses 92 protons, which means 92 electrons.
What materials make up electrons?Quarks make up protons and neutrons, but not electrons. We believe that quarks and electrons represent fundamental particles that are not composed of lesser subatomic particles. Saying that everything is composed of particles is one thing.
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Can someone help me with this please
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In an autosomal recessive inheritance pattern, both copies of a gene must have a specific recessive allele for the trait or disorder to be expressed. The correct answer is autosomal recessive.
Autosomal recessive refers to a type of inheritance pattern for genetic traits or disorders that are located on autosomal chromosomes (non-sex chromosomes).
Both parents of an affected individual are typically carriers of the recessive allele but do not exhibit the trait or disorder themselves. The trait or disorder can skip generations because carriers can pass the recessive allele to their offspring without expressing the trait.
The answer is autosomal recessive.
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Mendelian Genetics Exercise D: Mendel's Dihybrid Cross But wait..there's more! Mendel's monohybrid crosses established that inheritance of phenotypes appened by the interactions of discrete 'particles' (we now call alleles). Further, he discovered that alleles segregate during the process of meiosis in the production of gametes, which recombine uring fertilization. The result of these two insights can easily be predicted by a technique developed by R. C. Punnett. Once these principles were established, Mendel sought to understand how multiple phenotypes were related to each other during inheritance. He developed two alternate hypotheses: Dependent assortment hypothesis The dependent assortment hypothesis predicts that phenotypes are linked to each other. For example, a purple-flowered plant would always have green seeds (but never yellow seeds) Independent assortment hypothesis Alternatively, flower color and seed color could be independently assorted, in which purple-flowered plants could have green or yellow seeds, and a white-flowered plant could also have green or yellow seeds. In other words, flower color is independent of seed color. Mendel's dihybrid crosses To test these alternate hypotheses, Mendel used the same approach as he did in his monohybrid crosses, except this time he analyzed two phenotypes at the same time. For our example, we will analyze his results of flower and seed color. He began his experiment by conducting several controlled crosses of one plant with two known dominant alleles generating a pure line: homozygote purple-flowered (FF) and yellow-seeded (SS). Collectively this is represented as FFSS. He conducted another controlled cross of another plant with two known recessive alleles, ffss. 14. Refer to table 1, what was the phenotype of the fss genotype of the P generation in Mendel's dihybrid cross? ___ and ___15. From what Mendel understood about dominant and recessive phenotypes from his monohybrid crosses, he expected all of the offspring in the F, generation to have the following phenotypes: ____ and ____
Answers
The phenotype of ffss genotype is green flowers with white seeds and The phenotypes in F2 generation are:
Purple flower yellow seeds Purple flower white seeds Green flower yellow seeds Green flower white seedsThe set of qualities or characteristics that may be seen in an organism are known as its phenotype in genetics. The word includes an organism's anatomy, developmental processes, physiological and biochemical characteristics, behavior, and the outcomes of behaviour.
The genetic makeup of an organism, or genotype. From the time of embryonic development to adulthood, an individual's genotype defines their inherited potentials and restrictions. In sexually reproducing organisms, a person's genotype is made up of the full collection of genes they got from both parents.
Mathematically, it can be shown that sexual reproduction almost ensures that each individual will have a distinct genotype (with the exception of those, like identical twins, who are descended from the same fertilised egg).
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Need help with this. having a hard time
Answers
Answer:
RNA to DNA is transcription. RNA to protiens is translation.
p.s. Sorry I don't know what protiens determine
ovid's creation account bears some striking similarities to the biblical version. what are some of these similarities? what are some major differences
Answers
Some striking similarities between Ovid's creation account and the biblical version include the concept of a divine creator, the creation of the world and living beings, and the existence of a primordial state. However, major differences lie in the details, such as the sequence of events, the nature of the creator, and the purpose of creation.
In both Ovid's creation account (found in his work Metamorphoses) and the biblical version (found in the book of Genesis), there are similarities in the general themes and concepts. Both narratives involve the idea of a divine creator who brings forth the world and living beings. They also depict a primordial state before the creation, although the details differ. However, major differences emerge when examining the specific events and details of the narratives.
The sequence of creation, the nature of the creator (polytheistic in Ovid's account and monotheistic in the biblical version), and the purpose of creation diverge significantly. These differences reflect the distinct cultural and religious contexts in which the accounts were created.
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what training method, in terms of duration and intensity, will stimulate gradual adaptations in muscle fibers helping to make them more fatigue resistant?
Answers
The progressive resistance training regimen should stress the muscles in order for them to work properly. The muscle that is worked is the muscle that adapts to training, which is the most evident example of specificity.
Resistance exercise builds muscular strength by challenging your muscles to perform against a weight or force.Resistance training can be done with free weights, weight machines, resistance bands, or your own body weight.To reap the most benefits, a novice should workout twice or three times each week.Before beginning a new fitness program, complete the adult pre-exercise screening tool and consult with a specialist, such as your doctor, exercise physiologist, physiotherapist, or AUS active registered professional.To maximize strength and growth increases, rest each muscle group for at least 48 hours.Changing up your routines might help you break through a fitness plateau.Learn more about Resistance training to visit this link
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Marnie fines a mineral and wants to test its properties. She scratches it with an iron nail. Wich property of the mineral will Marnie be able to identify using this test?
Answers
Marnie will be able to identify the hardness property of the mineral by scratching it with an iron nail. Hardness is a mineral property that refers to its resistance to being scratched or abrasion.
The Mohs scale of mineral hardness is widely used to compare the hardness of different minerals. It ranges from 1 to 10, with 1 being the softest (e.g. talc) and 10 being the hardest (e.g. diamond). When a mineral can be scratched by a material with a higher number on the scale, it means that the mineral is softer than that material. Conversely, when a mineral can scratch a material with a lower number on the scale, it means that the mineral is harder than that material. By scratching the mineral with an iron nail, Marnie will be able to determine its hardness based on whether the nail leaves a scratch mark on the mineral or not.
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Marnie will be able to identify the hardness property of the mineral by scratching it with an iron nail. Hardness is a mineral property that refers to its resistance to being scratched or abrasion.
The Mohs scale of mineral hardness is widely used to compare the hardness of different minerals. It ranges from 1 to 10, with 1 being the softest (e.g. talc) and 10 being the hardest (e.g. diamond). When a mineral can be scratched by a material with a higher number on the scale, it means that the mineral is softer than that material. Conversely, when a mineral can scratch a material with a lower number on the scale, it means that the mineral is harder than that material. By scratching the mineral with an iron nail, Marnie will be able to determine its hardness based on whether the nail leaves a scratch mark on the mineral or not.
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write a paragraph on predicting how the loss of all chloroplasts would affect all the plants and animals and please include evidence and cite your sources.
Answers
Answer:
yes
Explanation:
ok
what part of the brain coordinates reflexes between body and brain
Answers
Answer:
The brainstem
Explanation:
The brainstem also controls your balance, coordination and reflexes.
HOPE THIS HELPS YOUPLS RATE AS BRAINLIEST ANSWERWhich Life Cycle stages are major periods of growth? (more than one is correct).
Infancy Toddlerhood Childhood Adolescence Older Adulthood
Answers
Throughout the course of a person's life, their body continuously develops and evolves, and food serves as the fuel for the those changes. Pregnancy, early childhood, and old age are the main phases of the human life cycle.
Which stages of the life cycle have significant growth periods?Image 2. Significant growth occurs during the initial two years of existence, as this newborn baby his his toddler brother demonstrate. The first 1.5 to 2 years of existence are a time of rapid development and change.
And what were the three growth phases?Maybe you've got three: youth, adulthood, then old age. Or maybe there are four: childhood, adolescence, adulthood, and infancy. The lifespan is sometimes divided into eight stages by developmentalists: embryonic development.
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drugs that induce biotransformation enzymes: a. increase the activity of biotransformation enzymes b. cause the drug to be increasingly metabolized c. increase the breakdown of other hepatically metabolized drugs d. all of the above
Answers
The liver is the primary site of the metabolic process known as biotransformation, which helps the body eliminate both exogenous and endogenous substances.
So the correct answer is option D all of the above.
Through a series of reactions, these molecules' chemical structures are altered. Enzyme inhibition happens when two drugs with the same isozyme for metabolism compete for the same enzyme receptor site. The more potent inhibitor will prevail, slowing the competing drug's metabolism in the process. biotransformation of the liver. The liver is where most drugs are predominantly metabolized; this is particularly true of lipophilic drugs, which are commonly changed into hydrophilic metabolites that might be removed more quickly.
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Can you please watch and answer how you feel after? Its about the ocean it a trick the human mind plays. It will be in the comments! Erase spaces!
Answers
Watch what..............??
Answer:
Sorry, what video? I don't see any video.
Explanation:
Anyways, the ocean is quite precious and there are many documentarys that show that. I love the marine life!
Roentgen is a unit that measures radia2on exposure for effect on • A. DNA • B. cells • C. Tissues • D. Air • • 2.. Roentgen applies to • A. Alpha radia2on • B. Beta radia2on • C. Gamma radia2on • D. X-ray radia2on • 3.. Radia(on absorbed dose (Rad) is a unit for measuring absorbed dose in any materials and applies to _______ radia(on. • A. Alpha radia(on • B. Beta radia(on • C. Gamma radia(on • D. X-ray radia(on • E. All of the above • 4.. Roentgen equivalent man (rem) is a unit measuring effec(ve dose and applies to _________ radia(on. • A. Alpha radia(on • B. Beta radia(on • C. Gamma radia(on • D. X-ray radia(on • E. All of the above • 5.. Radia6on weighing factors (WF) refer to different biological effects of radia6on. Which type of ionizing radia6on has the largest WF value? • A. Alpha • B. Neutron • C. Beta • D. Gamma
Answers
3. Roentgen applies to: X-ray radiation. 4. Roentgen equivalent man (rem) is a unit measuring effective dose and applies to option E. All of the above (Alpha radiation, Beta radiation, Gamma radiation, and X-ray radiation).
3. Roentgen applies to: X-ray radiation.
Roentgen is a unit that measures radiation exposure for its effect on C. Tissues.
Radiation absorbed dose (Rad) is a unit for measuring absorbed dose in any materials and applies to E. All of the above (Alpha radiation, Beta radiation, Gamma radiation, and X-ray radiation).
4. Roentgen equivalent man (rem) is a unit measuring effective dose and applies to E. All of the above (Alpha radiation, Beta radiation, Gamma radiation, and X-ray radiation).
Radiation weighting factors (WF) refer to different biological effects of radiation. The type of ionizing radiation with the largest WF value is: A. Alpha.
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Complete question:
1.. Roentgen Is A Unit That Measures Radia2on Exposure For Effect On • A. DNA • B. Cells • C. Tissues • D. Air • • 2.. Roentgen Applies To • A. Alpha Radia2on • B. Beta Radia2on • C. Gamma Radia2on • D. X-Ray Radia2on • 3.. Radia(On Absorbed Dose (Rad) Is A Unit For Measuring Absorbed Dose In Any Materials And Applies To _______ Radia(On. • A. Alpha Radia(On
1.. Roentgen is a unit that measures radia2on exposure for effect on • A. DNA • B. cells • C. Tissues • D. Air • •
2.. Roentgen applies to • A. Alpha radia2on • B. Beta radia2on • C. Gamma radia2on • D. X-ray radia2on •
3.. Radia(on absorbed dose (Rad) is a unit for measuring absorbed dose in any materials and applies to _______ radia(on. • A. Alpha radia(on • B. Beta radia(on • C. Gamma radia(on • D. X-ray radia(on • E. All of the above •
4.. Roentgen equivalent man (rem) is a unit measuring effec(ve dose and applies to _________ radia(on. • A. Alpha radia(on • B. Beta radia(on • C. Gamma radia(on • D. X-ray radia(on • E. All of the above •
5.. Radia6on weighing factors (WF) refer to different biological effects of radia6on. Which type of ionizing radia6on has the largest WF value? • A. Alpha • B. Neutron • C. Beta • D. Gamma
Which example of weather produces heavy winds, Humidity, and lots of rain?
A. Hall storm
B. Hurricane
C. Tsunami
D. Snowstorm
Answers
Hope this helps
Answer:It B
Explanation:
Identify and describe 3 different scenarios in which use of CRISPR-Cas9 has been proposed to be beneficial. 1.2.3.
Answers
CRISPR-Cas9 is a revolutionary gene-editing tool that is changing the face of biology and medicine.
Here are three different scenarios in which its use has been proposed to be beneficial:
1. Genetic Diseases: CRISPR-Cas9 has been proposed to be beneficial in treating genetic diseases such as cystic fibrosis, sickle cell anemia, and Huntington's disease. The technique can be used to edit the DNA of a patient's cells to correct the genetic mutation that is causing the disease. In 2019, the first clinical trials using CRISPR-Cas9 for treating genetic diseases began.
2. Agriculture: CRISPR-Cas9 has been proposed to be beneficial in agriculture by creating crops that are resistant to pests and disease. This would reduce the use of pesticides and increase food production. For example, scientists have used CRISPR-Cas9 to create a wheat variety that is resistant to powdery mildew, a common disease that can reduce yields.
3. Conservation: CRISPR-Cas9 has been proposed to be beneficial in conservation by bringing back extinct species. The technique can be used to edit the DNA of closely related species to create an embryo that contains the DNA of the extinct species. For example, scientists have proposed using CRISPR-Cas9 to bring back the woolly mammoth by editing the DNA of Asian elephants, which are closely related to woolly mammoths. This could help restore ecosystems and prevent the loss of biodiversity.
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. Name an organ that is composed primarily of nervous tissue.
Answers
The organ that is composed primarily of nervous tissue is the brain.
The brain is a complex and vital organ that controls all the functions of the body. It is composed of billions of nerve cells, or neurons, which communicate with each other through electrical and chemical signals. The brain is responsible for processing sensory information, controlling movement, regulating hormones, and maintaining homeostasis in the body. The nervous tissue in the brain is made up of gray matter and white matter. The gray matter consists of the cell bodies and dendrites of neurons, while the white matter consists of the axons of neurons. Together, these structures make up the intricate network of the nervous system that enables us to think, feel, and act. In conclusion, the brain is an organ that is composed primarily of nervous tissue, and it is essential for our survival and well-being.
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The bacteria that cause tetanus can survive in a puncture wound that has healed on the outer
surface of the skin in an environment without oxygen present. Through what process do these
bacteria acquire the energy they need to survive?
A)Aerobic respiration
B)Anaerobic respiration alioleanind
C)Photosynthesis
D)Homeostasis
Answers
Tetanus-causing bacteria may endure in an oxygen-free environment in a puncture hole that has healed on the skin's outer layer. The process of anaerobic respiration is used to provide bacteria with the energy they require to survive. Option B is Correct.
All pathogens are heterotrophic bacteria, which get their energy by oxidizing organic molecules. The three substances that are most often oxidized are lipids, proteins, and carbohydrates, especially glucose. By biologically oxidizing these organic molecules, bacteria create ATP, which serves as a source of chemical energy.
A byproduct of anaerobic respiration is lactic acid. This occurs when there is a greater need for energy and a decreased supply of oxygen, typically during vigorous activity. The oxygen supply then breaks down the lactic acid that has so been generated. Option B is Correct.
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