micro please choose the answer that best fills in the blanks of this sentence in the correct order. defenses are present at birth and provide mostly nonspecific resistance to infection, whereas defenses are specific defenses that must be acquired. adaptive; innate innate; adaptive passive; active active; passive
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Innate defenses are present at birth and provide mostly nonspecific resistance to infection, whereas adaptive defenses are specific defenses that must be acquired.
Innate or general defences stop or restrict the movement, invasion, and spread of microbes and other environmental threats. These defences frequently work independently of other defences to eliminate germs and avoid infection. However, occasionally the non-specific defences require assistance from the adaptive immune system. The initial line of protection is comprised of undamaged skin and mucosae, which are known as nonspecific defences. The second line of defence is triggered when germs enter the skin or mucosae. Internal defences, such as phagocytes and antibacterial proteins, are necessary for this. The most crucial mechanism in the second line of defence is inflammation. Mechanical barriers that cover bodily surfaces and chemical compounds that interact with invasive infections are two examples of nonspecific defences.To know more about innate check the below link:
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Related Questions
Consumption of non-nutritious food and sedentary behavior has resulted in an increase in __________ in countries in stage four of the epidemiologic transition. A. Cancer B. Famine C. Plagues D. Obesity
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Countries in stage four of the epidemiologic transition have seen a rise in obesity as a result of sedentary lifestyles and the consumption of non-nutritions food.
In stage four, countries witness a shift in the leading cause of morbidity and mortality from infectious diseases to non-communicable illnesses like cardiovascular disease, diabetes, and specific types of cancer. Obesity rates have increased as a result of the adoption of bad eating habits, such as the intake of processed meals and foods high in calories, as well as a decline in physical activity levels. Obesity is a big health concern in stage four countries because it increases the risk of several chronic diseases, such as heart disease, stroke, and some types of cancer.
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Am I correct hurry!!!
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Answer: Yes
Explanation:
a specimen that is spread thinly across a slide in order to be viewed under a microscope is a
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A specimen that is spread thinly across a slide in order to be viewed under a microscope is called a smear.
A smear is a technique commonly used in microscopy to prepare a sample for observation. It involves spreading a small amount of the specimen, such as a liquid or a thin film of cells, across a glass slide. The purpose of creating a smear is to obtain a thin and even layer of the specimen, allowing for better visualization and examination under a microscope.
To create a smear, a drop of the specimen is placed on the slide, and then a spreading tool, such as another slide or a loop, is used to spread the sample evenly across the slide. The process of spreading the specimen ensures that individual cells or components are separated and distributed in a way that facilitates microscopic examination. Smears are commonly used in various fields of biology and medicine, such as microbiology, cytology, and histology, to study cellular structures, identify microorganisms, or analyze cell morphology in microscope.
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Which of these would still occur if there was no oxygen present in the cell?
1. Aerobic Respiration
2. Alcohol Fermentation and Lactic Acid Fermentation
3. Electron Transport Chain
Answers
Answer:
Alcohol Fermentation and Lactic Acid Fermentation.
Explanation:
First of all, aerobic respiration wouldn't be able to happen because in the question, it states that no oxygen is present and aerobic means that oxygen is present. And, fermentation will happen when no oxygen is present, meaning that it is anaerobic.
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how might selection drive the evolutionary response of snowshoe hare populations experiencing warming in the far north due to climate change?
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Climate change, specifically warming temperatures in the far north, can have significant impacts on snowshoe hare populations.
Climate refers to the long-term patterns and variations in weather conditions observed in a particular region over an extended period, typically spanning decades to centuries. It encompasses factors such as temperature, precipitation, humidity, wind patterns, and atmospheric conditions. Climate is influenced by various factors, including solar radiation, Earth's rotation, topography, ocean currents, and greenhouse gas concentrations.
Different regions around the world exhibit diverse climatic characteristics, ranging from tropical to polar climates. These variations shape ecosystems, agriculture, and human activities in different parts of the globe. Climate change, driven primarily by human activities, including the burning of fossil fuels and deforestation, is a growing concern as it leads to alterations in global weather patterns and an increase in extreme events, such as heatwaves, storms, and droughts.
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Select the correct ans
Why does water heat up and cool down slowly?
ОА
Water has a low heat of vaporization
OB.
Water has a variable thermal potential
OC. .
Water has a high specific heat
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Answer:
water has a high specific heat
Which of these changes produces a chemical change?
A. Lava cools and changes from a thick fluid to solid rock.
B. A large rock is crushed into gravel,
C. Limestone slowly dissolves in water and forms a cave,
D. A stone fizzes and forms a gas when acid is dropped on it.
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Answer:
b
dissolving is a chemical change
Isabella liked to sunbathe. However, after she learned that ultraviolet rays are a cause of environmental mutations, she decided to stop sunbathing.
Another kind of mutation is genetic, and it is caused by small changes in an organism’s DNA. A change in a base pair is a mutation. This can cause the wrong protein to be made during protein synthesis. Which of the following are causes of mutations? Choose three that apply.
A. DNA sequence
B. deletion
C. addition
D. sex-linked
E. substitution
F. expression
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Deletion, addition, and sex-linked are causes of mutation, introducing one or more nucleotides to the gene, an insertion modifies the DNA sequence.
What are the different types of mutations?The protein produced from the gene might not work effectively, by eliminating at least one nucleotide from a gene, a deletion modifies the DNA sequence.
One of the sex chromosomes, which are the X and Y chromosomes, is how sex-related disorders are inherited.
When one parent's faulty gene can cause an illness while the other parent's identical gene is normal, this is known as dominant inheritance.
Therefore, B, C, and D are correct.
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how do master regulatory genes function in cell differentiation? view available hint(s)for part a how do master regulatory genes function in cell differentiation? they may produce proteins that stimulate production of more of the master regulatory gene. they produce proteins that act as transcription factors to produce proteins specific to the function of the particular cell type. the transcription factors they produce coordinately control related genes. they are often capable of changing some fully differentiated cells of different types into their particular cell type. all of the listed responses are correct.
Answers
The master regulatory genes function in cell differentiation in a way that they produce proteins that act as transcription factors to produce proteins specific to the function of the particular cell type.
Master regulatory genes play a critical role in the process of cell differentiation by regulating the expression of other genes involved in the development of specific cell types. Specifically, they produce proteins that act as transcription factors, which bind to specific DNA sequences and stimulate the transcription of genes that are essential for the development of a particular cell type. This process of gene regulation helps to coordinate the expression of genes that are required for a specific cell type to function properly. In addition, some master regulatory genes are capable of converting fully differentiated cells of different types into their particular cell type, a process known as cell reprogramming. Overall, the role of master regulatory genes in cell differentiation is crucial for the development and maintenance of different cell types in the body.
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how do you count to temperature
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discuss the synaptic changes that accompany memory formation and storage.
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Synaptic changes are thought to be an essential part of memory formation and storage. This theory suggests that memories are encoded, stored, and retrieved by changes in the strength of connections between neurons.
An increase in the number of synapses, known as synaptic plasticity, is observed when new memories are formed. This strengthening of synaptic connections makes it easier to recall previously learned information and can also increase the speed at which information can be processed.
Additionally, modifications of existing neurotransmitter receptors and the amount of neurotransmitters released in response to stimuli can also alter synaptic connections and mediate memory formation. Finally, studies suggest that the hippocampus and other areas of the brain are involved in long-term memory storage, which is associated with the change in synaptic strength and the building of new connections.
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A packaging plant manager wants to know if lowering the air temperature in the packing room will cause workers to increase productivity (number of products packed). Workers in two equivalent packing rooms participate in the study. One room is maintained at 65°F, while the other room is left at the usual temperature of 76°F.
Independent Variable _______________________________________________________
Dependent Variable ¬_________________________________________________________
Experimental Group ________________________________________________________
Control Group _______________________________________________________________
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Answer:
Independent Variable: Temperature
Dependent Variable: Packaging speed
Experimental Group: The workers in the packing room
Control Group: Packaging plant manager
Explanation:
which protein, acting as a hormone, regulates blood glucose? a. insulin b. thyroxine c. antidiuretic d. oxytocin e. prolactin
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The protein acting as a hormone that regulates blood glucose is a) insulin.
Insulin is a hormone produced by the beta cells of the pancreas and plays a crucial role in regulating blood glucose levels. When blood glucose levels rise, such as after a meal, insulin is released into the bloodstream. Insulin acts on various tissues, particularly the liver, muscle, and adipose (fat) cells, promoting the uptake and storage of glucose. It helps lower blood glucose levels by facilitating the movement of glucose from the bloodstream into these cells, where it is either used for energy or stored as glycogen.
Insulin also suppresses the production of glucose by the liver. In individuals with diabetes, either insufficient insulin is produced (type 1 diabetes) or the body's cells become resistant to the effects of insulin (type 2 diabetes), leading to elevated blood glucose levels. Insulin therapy or other treatments are used to manage and control blood glucose in individuals with diabetes.
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The diagram provides an overview of how dialysis works. Using this model as an example, explain how the diyalysis machine performs the function that's normally performed by the kidneys
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Answer:
The main job of a kidney is to filter toxins and waste products from the blood. In dialysis, the machine takes in blood from the artery and pumps it through a semipermeable membrane. This function is similar to that of the capillaries in the kidney. They allow waste products to filter from the kidneys. The waste excretes into a bag in a manner similar to how the bladder excretes urine from the body. The clean blood pumps back into the body and is carried back to the heart via a vein.
Explanation:
that's the answer that shows when you submit it
Chance changes in allele frequencies within a population are called:.
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Which of the following is involved in the condensation of chromosomes?
A. Cdc25
B. Cdc75
C. Cdc6
D. Cdc9
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None of the options listed (Cdc25, Cdc75, Cdc6, Cdc9) are directly involved in the condensation of chromosomes. The process of chromosome condensation is primarily regulated by proteins such as condensins or cohesins.
Proteins are fundamental biomolecules composed of amino acids linked together by peptide bonds. They play essential roles in living organisms, serving as structural components, enzymes, receptors, transporters, and signaling molecules. Proteins are involved in almost all biological processes, including cell growth and repair, metabolism, immune response, and gene expression. Their diverse functions are dictated by their unique three-dimensional structures, which are determined by the specific sequence of amino acids. Proteins are synthesized through the process of translation, where the genetic information stored in DNA is transcribed into RNA and then translated into protein sequences.
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What are the possible anticodons in the tRNA molecules that carry serine to the ribosome?
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Please help me I will mark BRAINLIEST
Answers
Answer:
D
Explanation:
Answer: I think its c
What will happen if a person is exposed to too much x-ray?
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If a person is exposed to too much x-ray are cancer, bleeding, because of the high energy of these electromagnetic waves.
X-rays are a naturally occurring form of electromagnetic radiation. They are produced when charged particles of sufficient energy hit a material.
There is a very little chance of experiencing short-term negative effects despite the fact that X-rays are associated with a slightly elevated risk of cancer.
High radiation exposure can cause a variety of side effects, including nausea, bleeding, fainting, hair loss, and loss of skin and hair.
However, because X-rays deliver such a tiny dosage of radiation, it is thought that they have no immediate negative effects on health.
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How did Carl Linneaus’s original classification system differ from today?
A. He only had two kingdoms, animals and plants.
B. He did not consider how organisms may be related to one another.
C. He was a botanist, so he only classified plants.
D. He did not classify all the way down to the species level.
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A. He only had two kingdoms, animals and plants.
How has the Linnaean classification system changed since it was developed?The addition of a new taxon known as the domain was a significant change to the Linnaean system. A domain is a larger and more inclusive taxon than the kingdom. Most biologists agree that life on Earth is divided into three domains: Bacteria, Archaea, and Eukaryota.One reason for the need for revisions is that many new organisms have been discovered since Linnaeus' time. Another reason is that scientists began classifying organisms based on evolutionary relationships rather than solely on physical trait similarities.
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why do organisms that perform photosynthesis require water and sun light?
Answers
Answer:
Explanation:
Photosynthetic organisms need light because this is the source of the energy that is transformed to chemical energy by chlorophyll. These organisms need water because the electrons that are excited in chlorophyll and passed to the electron transport system are replaced with electrons from a split water molecule. Hydrogen is used to form the proton gradient across the thylakoid membrane. The electrons take from the oxygen molecules in water release an oxygen gas into the atmosphere which makes living possible for us.
While you’re waiting for the lactase solution to cool, read the directions on the test strips. The test strips in the Edmentum lab kit will react to glucose within a few seconds. If you use different strips, the reaction time may vary. Now follow these steps to test the solutions. Record your data in the answer space.
Milk and water solution: Fill the first test tube one fourth full of milk. Fill the small graduated cylinder with water and gently add it to the milk in the test tube until the test tube is half full. Use the stirrer to thoroughly mix the solution. Then insert the test strip for 10 to 20 seconds. Look at the test strip, and record whether it changed color. Wash the stirrer.
Milk and lactase enzyme solution: Fill the second test tube one fourth with milk and one fourth with the lactase solution. Use the stirrer to thoroughly mix the solution. Insert the test strip for 10 to 20 seconds, and record whether it changed color. Wash the stirrer.
Milk an
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The arrow in a chemical equation represents the ________________ _________________
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Answer:The subscript
Explanation:
A forest area is cleared and replaced with a parking lot. Over several years, water quality in this area will likely be harmed most by –
A. Decreased water flow in streams
B. Increased sediments in runoff water
C. Increased oil products in groundwater
D. Decreased animal waste
Answers
Answer:
A.
Explanation:
The nutrients the forest trees give are taken away and an entire ecosystem is gone. Rivers and Lakes are usually big enough or fast enough to clear the water from gravel, waste, and other products. The water area's population of animals are constricted and they lose numbers to predator's and more waste. The waste most likely comes from the building that the parking lot is from. So slower water flow means the waste is caught and stays which kills the population of fish.
True or false? Proteins play an important role in nerve signaling 
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Answer:
true
Explanation:
Neurexin is a protein required to connect between nerve cells. The receptor proteins present in sensory neurons receive the signal from the sensory organ
the ability of vessels to expand and contract to accommodate blood pressure fluctuations is known as
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The ability of vessels to expand and contract to accommodate blood pressure fluctuations is known as vascular compliance.
Vascular compliance refers to the ability of blood vessels to stretch or contract depending on the level of pressure within the vessels. This is a crucial function of blood vessels in order to maintain optimal blood pressure throughout the body.
When the pressure of blood within the vessels increases, the vessels respond by dilating, or expanding, in order to reduce the pressure. Conversely, when the pressure drops, the vessels constrict or shrink in order to prevent the blood pressure from dropping too low. This process is known as vasomotion, and it is one of the most important functions of blood vessels.
The level of vascular compliance varies between different parts of the body. The vessels in the large arteries are more compliant than those in the smaller arteries and veins. This is because the large arteries need to be more responsive to changes in the pressure so that the pressure is more evenly distributed throughout the body.
In summary, vascular compliance is an important part of maintaining homeostasis in the body, as it allows the body to adapt to changes in the external environment. Without this important function, the body would be unable to maintain steady and optimal blood pressure.
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The most common elements for life are
CHONPS
The letter O symbolizes the element....
A. oxide
B. oxygen
C. oxidase
Answers
Answer: Oxygen
Explanation:
Diatomic oxygen (O2) makes up about 21% of the Earth's atmosphere and is vital for life.
_____ refers to a trait that is controlled by multiple interacting genes,
and sometimes the environment as well.
A. Polygenic inheritance
B. Gene loci
C. Epistasis
D. Multiple Alleles
Answers
Answer:
A
Explanation:
polygenic inheritance
For natural selection to result in evolutionary change:____.
a. Reproductive success of different phenotypes must differ.
b. Variation must be inherited from one generation to the next.
c. Variation must exist in a population.
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For natural selection to result in evolutionary change, Reproductive success of different phenotypes must differ, Variation must be inherited from one generation to the next. and Variation must exist in a population. The correct answer is options (a), (b) and (c).
a. Reproductive success of different phenotypes must differ: Natural selection occurs when certain traits or phenotypes confer advantages in survival and reproduction. b. Variation must be inherited from one generation to the next: For natural selection to operate, there must be genetic variation within a population. This variation is the result of genetic mutations, recombination, and other genetic processes.
c. Variation must exist in a population: Natural selection acts upon existing variation within a population. Without variation, there would be no differences for selection to act upon, and no evolutionary change would occur. Therefore, for natural selection to lead to evolutionary change, there must be variation within a population, that variation must be heritable, and different phenotypes must experience differential reproductive success. Hence, all of the given option (a, b and c are correct ).
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Hematocrit is a measurement of the percentage of blood volume composed of which formed element? RBC
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Hematocrit is a measurement of the percentage of blood volume occupied by red blood cells. This value is an important parameter in assessing a patient's overall health and may be used to diagnose and monitor certain medical conditions.
Hematocrit is a commonly used medical test that measures the percentage of blood volume occupied by red blood cells (RBCs). It is an important parameter that can provide insights into a patient's overall health and may be used to diagnose and monitor certain medical conditions.
Red blood cells, also known as erythrocytes, are responsible for carrying oxygen to various tissues and organs throughout the body. They are also involved in the transport of carbon dioxide from these tissues to the lungs, where it can be exhaled. Red blood cells are formed in the bone marrow and have a lifespan of about 120 days before being removed by the body.
Hematocrit is measured by taking a sample of blood and centrifuging it to separate the components. The resulting layers will contain plasma at the top, followed by a thin layer of white blood cells and platelets, and finally a layer of red blood cells at the bottom. The percentage of the total blood volume made up of red blood cells is the hematocrit value.
A normal hematocrit range is typically between 38% and 52% for adult males and between 35% and 47% for adult females. Values outside of this range can indicate certain medical conditions, such as anemia or polycythemia vera. Anemia is characterized by a low hematocrit, which can result from iron deficiency, blood loss, or other factors. Polycythemia vera, on the other hand, is a rare condition in which the body produces too many red blood cells, leading to a high hematocrit value.
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