Explanation:
Integral membrane proteins, also called intrinsic proteins, have one or more segments that are embedded in the phospholipid bilayer.
It might be wrong
sorry:-)
HELP!!! due today and ignore the one i chose if its incorrect
A man is 1.7 m long. An amoeba is 17 um long. How does the length of the
man compare to the length of the amoeba?
A. The man is ten (10) times larger than the amoeba.
B. The man is one hundred thousand (1 x 105) times smaller than the
amoeba.
C. The man is ten (10) times smaller than the amoeba.
D. The man is one hundred thousand (1 x 105) times larger than the
amoeba.
Answer:
D. The man is one hundred thousand times larger than the amoeba.
Explanation:
one meter is equal to 1,000,000 micrometers.
(1.7m * 1,000,000)/17 = 100,000
need help with this practice quiz to get ready for my exam much help needed
On the pedigree, the square indicates that the individual is male and the circle indicates that the individual is female.
White shapes indicate that the individuals are not affected by a determined trait.
The shaded shapes indicate that the individuals are affected by the trait.
If you look at the pedigree, on the first generation on the left, and unaffected male and an affected female were crossed, the resulting offspring was an unaffected male.
Let's assume that the trait is autosomal recessive, the letter "A" is the dominant allele and the letter "a" is the recessive allele, you can represent this pedigree as follows:
The mother was affected by the trait but the child wasn't, since she only has two identical alleles to pass, it is most likely that the trait is recessive.
Also, the trait can be considered autosomal, if it was a sex-linked trait associated with the X-chromosome, and consider that males have only one X-chromosome inherited from their mother then the child should also express the trait.
If you look at the second and third generations, the crossing of two apparent unaffected individuals produced 6 offspring, two of which are affected by the trait one male and one female. This fact also suggests that the trait is recessive, both individuals in the second generation can be considered heterozygous. The trait is autosomal because the affected individuals in the third generation have different genders.
Humans have a double circulatory system. There is a low pressure circulation and a high pressure circulation.
Explain how the structure of the heart enables it to pump blood into circulations at different pressures.
Answer:
The human heart is a pump. It pumps blood around the body at different speeds and at different pressures according go the body's needs. It can do this because the wall of the heart is made from cardiac muscle. Blood is moved through the heart by a series of contractions and relaxations of cardiac muscle in the walls of the four chambers.
type a paragraph describing how the circulatory and respiratory systems work together to deliver oxygen to the body tissue and remove carbon dioxide
The respiratory system brought oxygen to the blood and, by the circulatory system, the oxygen from the blood reaches the heart, and from the heart to the cells.
What is the respiratory system?The respiratory system helps us to respire and reach oxygen to the blood, from there it goes to cells to carry out the process.
The circulatory system circulates the blood to the whole body.
The respiratory system brings oxygen to the blood, and the circulatory system circulates the oxygenated blood to the cells.
Thus, that's how they work together.
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in chemical reactions, bonds blank in reactants.
Which feature of this animal's body is not an adaptation for life in its habitat?
Answer:
It's eyes is correct
Explanation:
its eyes helps it see, therefore it's not an adaptation like it's flippers
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. Which statement best describes arteries? A. They have thick walls and transport blood away from the heart. B. They have thick walls and transport blood toward the heart. C. They have thin walls and transport blood away from the heart. D. They have thin walls and transport blood toward the heart.
Answer:answer is 1
Explanation:
because i’m like that and i know
Explain the relationship between the turgor pressure of the guard cell and the pH of the extracellular space.
The relationship between the turgor pressure of the guard cell and the pH of the extracellular space is determined by the fact that the turgor pressure is directly proportional to the pH of the extracellular space.
What is the turgor pressure?The turgor pressure may be defined as a type of pressure that is significantly exerted by fluid in a cell that presses the cell membrane against the cell wall. It typically makes living plant tissue rigid.
The turgor pressure is represented by Ψp. This is also known as pressure potential. Pressure potential may be positive or negative; the higher the pressure, the greater the potential energy in a system, and vice versa.
If the concentration of water or fluid is high, it means that it has high turgor pressure and in that condition, the pH of the extracellular must be high, as the concentration of solute is low.
Therefore, the turgor pressure is directly proportional to the pH of the extracellular space.
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1. Once you have chosen a bacterial disease, you must research it in great detail. The information you find can be organized into the following categories:
(a) cause
(b) symptoms,
(c) treatment methods,
(d) who does the disease affect, survival rates, etc.
2. Organize this information into "notes" that you will submit along with your poster.
3. Now organize this specific information into a "Wanted Poster". The poster will explain that the bacteria or virus is wanted dead, not alive. The wanted poster needs to include some kind of graphic (preferably a picture or a drawing), a description of the bacteria or parasite, and all of the categories listed above. The information should be clear, concise, and well organized.
4. You must include a bibliography that consists of at least 5 sources listed in the appropriate format. If you do not include a bibliography you will not receive credit for the assignment.
5. Be prepared to answer questions from the instructor about your project.
Humans are susceptible to a wide range of diseases brought on by germs. Humans frequently contract bacterial illnesses such tetanus, TB, pneumonia, typhoid, and others.
Thus, Pathogenic bacteria are those that infect people and cause various diseases. The body's defense system's ability to produce innate immunity allows us to support the growth of numerous microorganisms.
Disease-causing bacteria can enter body fluids and tissues by outpacing the body's own defense mechanisms. Bacteria can either directly harm cells, release toxins, influence how cells function, or trigger an immunological reaction that harms the cells.
Diseases brought on by bacteria are called bacterial diseases. The human body contains a variety of microbes. Many of these are referred to be "good bacteria" because they don't lead to any diseases.
Thus, Humans are susceptible to a wide range of diseases brought on by germs. Humans frequently contract bacterial illnesses such tetanus, TB, pneumonia, typhoid, and others.
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Why is E coli resistant to Vancomycin
Vancomycin is a glycopeptide antibiotic that inhibits bacterial cell wall synthesis by binding to the D-alanyl-D-alanine terminus of the peptidoglycan precursor. E. coli is generally susceptible to vancomycin, but there have been reports of vancomycin-resistant strains of E. coli.
The resistance of E. coli to vancomycin is primarily due to the modification of the peptidoglycan precursor, which reduces the binding affinity of vancomycin to the cell wall. Specifically, vancomycin-resistant E. coli strains have modified their cell wall precursor by substituting D-alanine with D-lactate, which decreases the binding affinity of vancomycin to the cell wall and reduces its effectiveness.
Moreover, some E. coli strains can acquire vancomycin resistance genes through horizontal gene transfer mechanisms such as conjugation, transduction, and transformation. These genes encode enzymes that modify the peptidoglycan precursor or alter the permeability of the bacterial membrane, allowing them to resist vancomycin.
It is important to note that while vancomycin resistance in E. coli is rare, it poses a significant threat to public health as it limits treatment options for infections caused by this bacterium.
In conclusion, E. coli can become resistant to vancomycin through modifications in its cell wall precursor or through acquiring resistance genes through horizontal gene transfer mechanisms.
An unknown solution has an H+ concentration of 10-12 moles per liter. Which of the following statements correctly describes this solution?
A.
The solution is basic in nature.
B.
The solution is acidic in nature.
C.
The solution is neutral in nature.
An unknown solution has an H+ concentration of 10-12 moles per litter, so it is a basic in nature. Thus option A is correct.
What is a formula for calculation of pH?As per given statement,
H+ = 10-12
And we know that formula for pH is given by:-
pH = -log[H+],
Putting the value of H+ ion in formula:-
pH = -log[10-12]
pH = 12
As per standard chart of pH, when pH varies from 0-6 it is acidic in nature, when it varies from 8-14 it is basic in nature, and when when it is 7 then it is neutral i.e water.
So the unknown solution has 12 pH. so we can say that it is basic in nature. Therefore option A is correct.
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When we ingest large molecules, they must undergo several processes before they may be completely digested. One of these processes uses both skeletal and smooth muscle contractions. This is called _____________. A. Absorption B. Secretion C. Chemicaldigestion D. Mechanical digestion
When we ingest large molecules, they must undergo several processes before they may be completely digested. One of these processes uses both skeletal and smooth muscle contractions. This is called mechanical digestion (option D)
Digestion is the process by which food
molecules is broken down into smaller particles.
This also takes two forms one of which is chemical digestion and the other: mechanical digestion.
Mechanical digestion involves the physical aspect of digestion which may include churning in the mouth, contraction of the smooth muscle etc.
All this is to break the food down into smaller particles. Chemical digestion is done with the aid of enzymes to help break large food particles down
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What processes can change sedimentary rock into igneous rock?
O A. Lithification and cooling
OC. Heating and cooling
OD. Uplift and erosion
B. High pressure and deposition
Answer:
heating
Explanation:
when it heat it come down
fill in the blank. two organisms are___if they share more taxonomic classification levels which f the following statements best distinguishes hyptoheses from theories in science
Two organisms are hypotheses if they share more taxonomic classification levels which f the following statements best distinguishes hyptoheses from theories in science.
There are three main hypothesis based on the research are Null Hypothesis, Nondirectional Hypothesis, Directional Hypothesis and the alternative hypothesis states that referres to relationship between the two variables that is being effected with each other.
Hypotheses are important in biology because it is used to create breakthroughs in knowledge and support scientific research. Thus it is a flow in the formulation of a hypothesis may cause a flaw in the design of an entire experiment.
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Structural category of costochondral joint
Answer:
The costochondral joints are joints of the thoracic wall that connect the sternal ends of the ribs and their respective costal cartilages. They are structurally classified as primary cartilaginous joints (synchondrosis) in which bones are joined by hyaline cartilage.
Explanation:
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how similar are the amino acid sequences of human and gorilla hemoglobin
There are two mechanisms that remove alleles: genetic drift and natural selection. With one or a combination of these mechanisms it is possible that in the proper environment, evolution may take place.
What are amino acids ?All living organisms use DNA as their genetic material, with some viruses using RNA. DNA is composed of four nucleotides making a double helix. In order to compare the DNA of chimpanzees to humans and gorillas, it is necessary to understand DNA hybridization.
DNA hybridization is based on nucleotide sequence similarity. This is accomplished by melting the DNA to single strands and then allowing for the strands to form double strands by slowly lowering the temperature slowly.
The difference between humans and chimpanzees in the non-coding region is 1.6%. By contrast, the difference between chimpanzees and gorillas is 2.1%.
Therefore, There are two mechanisms that remove alleles: genetic drift and natural selection. With one or a combination of these mechanisms it is possible that in the proper environment, evolution may take place.
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answer with explanation thank you
Part A:
The genes for feather color and texture are independently assorted, with light blue being more dominant than smooth and dark blue. It appears that the characteristics for wing colour (light blue vs. dark blue) and wing texture (smooth vs. ridged) are separately assorting based on the observed ratios of offspring with various combinations of wing colour and texture.
Part B:
One theory for why lactose tolerance evolved in humans is that increased selection during famines led some individuals to have a different food supply and increased fat consumption, which offered more resources for improved fitness. These two possibilities may serve as theories for the evolution of lactose tolerance in humans. One characteristic often seen in people with a history of dairy farming is the ability to digest lactose (the sugar contained in milk) from infancy.
Therefore, the correct options for Part A and Part B are B and B &D respectively.
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Drag the tiles to the correct boxes to complete the pairs.
Match each form of energy to its description.
gravitational potential
Motion energy refers to the energy related to an object's movement. When an object is in motion, it possesses kinetic energy, which is a form of motion energy.
How to explain the energyThe matching will be:
motion energy = energy related to an object's movement
chemical energy = stored energy related to positions of atoms within molecules
thermal energy = energy of motion of particles in a substance
nuclear energy = energy released when a nucleus splits or combines
gravitational potential energy = energy related to height
sound energy = energy generated by vibration of a string
Chemical energy is stored energy that is related to the positions of atoms within molecules. It is the energy that can be released or absorbed during a chemical reaction. When chemical bonds are formed or broken, energy is either released (exothermic reaction) or absorbed (endothermic reaction) in the process.
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Are the following structures found in plant cells, animal cells, or both?
cell membrane
cell wall
nucleus
ribosomes
chloroplasts
mitochondria
Answer:
chloroplasts
Explanation:
five (5) kidney diseases their symptoms and their effect
Answer:
Kidney failure occurs when your kidneys lose the ability to sufficiently filter waste from your blood. Many factors can interfere with your kidney health and function, such as:
toxic exposure to environmental pollutants or certain medications
certain acute and chronic diseases
severe dehydration
kidney trauma
Your body becomes overloaded with toxins if your kidneys can’t do their regular job. This can lead to kidney failure, which can be life-threatening if left untreated.
Usually, someone with kidney failure will have a few symptoms of the disease. Sometimes no symptoms are present. Possible symptoms include:
a reduced amount of urine
swelling of your legs, ankles, and feet from retention of fluids caused by the failure of the kidneys to eliminate water waste
unexplained shortness of breath
excessive drowsiness or fatigue
persistent nausea
confusion
pain or pressure in your chest
seizures
coma
Symptoms of early-stage kidney disease may be difficult to pinpoint. They’re often subtle and hard to identify. If you experience early signs of kidney disease, they may include:
decreased urine output
fluid retention that leads to swelling in limbs
shortness of breath
A sudden loss of blood flow to your kidneys can prompt kidney failure. Some conditions that cause loss of blood flow to the kidneys include:
a heart attack
heart disease
scarring of the liver or liver failure
dehydration
a severe burn
an allergic reaction
a severe infection, such as sepsis
High blood pressure and anti-inflammatory medications can also limit blood flow.
When your body can’t eliminate urine, toxins build up and overload the kidneys. Some cancers can block the urine passageways, such as:
prostate (a most common type in men)
colon
cervical
bladder
Other conditions can interfere with urination and possibly lead to kidney failure, including:
kidney stones
an enlarged prostate
blood clots within your urinary tract
damage to your nerves that control your bladder
Acute intrinsic kidney failure can result from direct trauma to the kidneys, such as physical impact or an accident. Causes also include toxin overload and ischemia, which is a lack of oxygen to the kidneys.
The following may cause ischemia:
severe bleeding
shock
renal blood vessel obstruction
glomerulonephritis
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Ps.The answer is B,
William meets Kate They both share many of the same beliefs and interests. Based on the effects of similarity on
attraction, which of the following is most likely to be William's reaction?
A William will be more likely to trust Kate than he would a stranger
B. William will be more attracted to Kate than he would a stranger.
C. William will be more likely to love Kate than he would a stranger
D. William will be more likely to distrust Kate than he would a stranger
Please select the best answer from the choices provided
A
Answer A
Explanation:
Answer:
the answer is B
Explanation:
just took the quiz
Question 3 of 10
How does natural selection lead to evolution?
A. Every generation is a new species.
O B. Many small changes can create a whole new species.
O C. An organism always has the same traits as its parent.
D. Adapted traits cannot be passed to offspring.
SUBMIT
Answer:
Small changes add up over time
Explanation:
there are different ___ of genes that code for all the differnt traits organisms can express
There are different alleles of genes that code for all the different traits organisms can express.
Even though there are 50,000 genes in every cell, only about 10% of them are expressed or switched on in any specific cell type.
Only a small fraction of a cell’s genes are transcribed at any given time. The variation in gene expression profiles among different cell types is due to the presence or absence of different sets of transcription regulatory factors. Some regulatory factors are designed to facilitate transcription, while others are designed to inhibit or inhibit transcription.
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Can environmental factors influence the expression of traits?
Answer:
Environmental Factors Interact with Genes
Environmental factors often influence traits independently of genes. But not always. Sometimes the environment changes a gene—either its DNA sequence or its activity level. Either of these effects can change the proteins that are made from a gene, which in turn affects traits.
Please help, there is also option D, which is "Structure D, by bending"
It is the crystallin, structure B by bending.
A diagram of an animal cell is shown below.
animal cell showing organelles
What is the function of organelle 2?
A.
to store ions, create and store steroids, and synthesize and package proteins
B.
to collect, package, and distribute molecules produced by the cell
C.
to supply the cell with energy, in the form of ATP, through the process of cellular respiration
D.
to aid in protein synthesis by joining amino acids together to form polypeptides
i need the picture to see what organelle 2 is
Carlton and Vanessa are lab partners in their biology class. One of their labs was to run the smell test experiment on each other.
When performing the smell test, Vanessa was quite good at noticing a difference between the various intensities of vanilla and also
the various intensities of evergreen. Although Carlton could distinguish what the vanilla and evergreen smells were, he couldn't tell
there was a difference in the intensities in the vanilla or the evergreen. Based on the information presented in this scenario, which
of the following is true?
Vanessa has a more sensitive difference threshold than Carlton.
Carlton has an impaired absolute threshold.
Vanessa has a better absolute threshold than Carlton.
Carlton has the superior performance with respect to the difference threshold.
Vanessa has an impaired absolute threshold.
Vanessa has a better absolute threshold and more sensitive difference threshold than Carlton, and Carlton has an impaired absolute threshold.
Carlton and Vanessa were lab partners for a biology class and were asked to run a smell test experiment on each other.
Vanessa was excellent at noticing the difference between various intensities of vanilla and evergreen.
Carlton, on the other hand, couldn't distinguish the difference in the intensities of both vanilla and evergreen, though he could tell the smells of both.
Hence, based on the information provided in the scenario, it can be inferred that Vanessa has a more sensitive difference threshold than Carlton, and Carlton has an impaired absolute threshold.
The two significant aspects that are involved in the scenario are absolute threshold and difference threshold.
The absolute threshold is the smallest quantity of a stimulus that an individual can detect, whereas the difference threshold is the minimum difference in stimuli that an individual can detect.
Carlton could recognize the stimuli's smell but not the difference in the intensity of vanilla and evergreen.
This shows that Carlton has an impaired absolute threshold.
He could not detect the smallest quantity of a stimulus to differentiate between the smells.
Vanessa was quite good at noticing the difference in the intensities of vanilla and evergreen.
This means that Vanessa has a more sensitive difference threshold than Carlton. She could detect the minimum difference in stimuli required to differentiate between smells.
Vanessa also has a better absolute threshold than Carlton as she could detect the smallest quantity of stimulus required to detect the smells.
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Roses attract more pollinators than tulips
Answer:
Pollinators are such as bees, insects, moths etc. that help in pollination of flowers.
Explanation:
When we heard about the pollinator we always think that theses are bees. Bees are very important in pollination of the plant. Pollinators are the insects that take some pollen from one flower to another flower and the procedure takes place for further.
These flowers attracts bees, insects, butterflies, bats moth and small mammals. Rose color and its tempt with fragrance attracts insects and bees. There are variety of flowers that attracts pollen but rose attract more because of fragrance and its color.
During DNA replication, a DNA strand that has the bases C T A G G T produces a complementary strand of DNA with the bases?
A. T C G A A C
B. G A T C C A
C. G A U C C A
Answer:
B
Explanation:
B because cytocine matches with guanine and adenine matches with tymine