Active immunity develops as a result of the body's own generation of antibodies, whereas passive immunity is a result of antibodies created outside the body and then brought into the body.
Which of the following best describes the differences between active and passive immunity?Both active and passive immunity exists. When our immune system actively defends us against a pathogen, we are said to have active immunity. When we receive immunity from another person, we are able to defend ourselves against a virus. This is a key distinction between the two types of immunity.
For instance, an infant acquires passive immunity when a mother's antibodies are transferred to her through the placenta or breast milk. Getting an injection of antibodies to fend against the effects of a toxin like a snake venom can also cause it.
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What is the importance of crossing over and independent assortment?
O It allows for exact copies of the cells to be made
It allows for mitosis to occur properly
O It allows for genetic variation within species
It allows for the same gametes to be produced every time
Which example best represents the results of mitosis?
If muscle A contracts and causes movement of some sort, and muscle B helps muscle
A accomplish this task, and muscle C does the opposite of A, then muscle A is a(n)
muscle, muscle B is a
muscle, and muscle C is aln)
muscle.
Answer:
RESPUESTA:OPCION B espero te ayude
A accomplish this task, and muscle C does the opposite of A, then muscle A is a antagonist to prime mover.
What is antagonist muscle?muscles can only pull. They typically work a joint in pairs because of this. When a body part is moved, one of the pair's muscles contracts; when the body part is brought back to its starting position, the other muscle in the pair contracts.
Antagonizing pairs of muscles are those that function in this way. When two muscles are antagonistic, one contracts while the other relaxes or lengthens. The muscle that is lengthening or relaxing is referred to as the antagonist, while the muscle that is contracting is referred to as the agonist.
Therefore, A accomplish this task, and muscle C does the opposite of A, then muscle A is a antagonist to prime mover.
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Please help me I don't understand
Answer:
D
Explanation:
All of the other options go against actual facts and the laws of biology
increasing intracellular cAMP leads to smooth muscle relaxation by: Group of answer choices inhibiting IP3 channels, leading to decreased Ca2 in the sarcoplasm and reduced contraction. Increasing the relative activity of MLCP, leading to a decrease in tension. Activating K channels, increasing K leaking out of the cell which hyperpolarizes it and decreases the likelihood of Ca2 entry. Lower levels of MLCK activity, leading to decreased contraction.
Answer:
1. Inhibiting IP3 channels, leading to decreased Ca2 in the sarcoplasm and reduced contraction.
2. Increasing the relative activity of MLCP, leading to a decrease in tension.
3. Activating K channels, increasing K leaking out of the cell which hyperpolarizes it and decreases the likelihood of Ca2 entry.
Explanation
In smooth muscle, cyclic AMP (cAMP) mediates relaxation because cAMP inhibits a specific kinase required for myosin light chain protein (MLCP) phosphorylation, thereby triggering contraction in the smooth muscles. It has been shown that cAMP inhibits 1,4,5-trisphosphate (IP3)-dependent calcium ions (Ca 2+) release by activation of the cGMP-dependent protein kinase (PKG). PKG proteins act to modulate Ca2+ oscillations by stimulating sarcoplasmic Ca2+-ATPase membrane proteins, increasing Ca2+ in the sarcoplasmic reticulum stores and Ca2+ efflux from the cells, and activate voltage-gated potassium (K) channels, thereby leading to membrane hyperpolarization and reducing Ca2+ entry through Ca2+ channels.
A control group is a group that:
Answer:
It is a group designed to not be affected by any variables and to be used as a comparison to the other groups. It helps increase the reliability of your results, as it shows your independent variable is what made something happen in your experiment.
We respect Dr. Trudeau and all those earlier scientists who did the best they could within the contemporary understanding of the problem they addressed and utilizing the materials and technology they had at hand. Modern-day biologists like to talk about resistance/susceptibility genes and patterns of inheritance, rather than family blood. They think about infectious disease in terms of microbes and pathogenicity, rather than speaking of bad humors. They have identified vitamins and other nutrients that are abundant in some foodstuffs and lacking in other that are essential for optimal immune function. Without the benefit of such modern formulations, Dr. Trudeau, by a disciplined application of scientific curiosity and careful, clever methodology, shed light on each of these concerns, light that helped to illuminate the minds of scientists who came after. Still, a look at his original paper leaves us wondering, were the rabbits genetically identical? Probably not! Why? Were they all of the same sex and age? Couldn’t he have given the animals kept on short rations just a smaller amount of the same varieties of food available to the animals fed abundantly—after all, there might be some important nutrient missing in potatoes. In light of the title of the paper, why not measure bacterial numbers in the rabbits on post mortem rather than just survival time? (In a subsequent paper, he did exactly that.) Once you start critiquing an experiment from 100 years ago, or 10 years ago, or sometimes even last year, it’s hard to stop.
Can you think of anything else you would have changed about the Rabbit Island Experiment?
Answer:
Ala escala del uno al diez
explain why most high pressure air system form at the poles
Answer:
Subsidence
Explanation:
subsidence is a process where cold temperatures in the polar regions cause air to descend to create high pressure it's basically the difference in temperatures that make the pressure so high because hot atoms expand and becomes less dense and rise while cold air contracts and becomes more dense and falls. hope this helps
Label flower parts pls
Answer:
1Anther
2Filament
3Stamen
4Stigma
5Style
6Ovary
7Pistil or gynoecium
8Ovule
9Petal
10Sepal
Explanation:
Answer:
AntherFilamentStamenStigmaStyleOvaryPistilOvula/OvumPetalSepal
Which choice shows the correct order of the cell cycle?
A. Mitosis --> Cytokinesis --> Interphase
B. Mitosis --> Interphase --> DNA Replication
Answer:
correct order of the cell cycle? A
Check Your Understanding
Question: What is an adaptation?
Answer:
an adaptation can be defined as an inherited trait which confers an evolutionary advantage to the organism in a certain environment
Explanation:
An adaptation, also known as an evolutionary adaptation, can be defined as any physiological and/or morphological inherited trait related to the improved evolutionary fitness of one organism in a particular environment. An adaptation improves the chances of survival and reproduction in a certain environment, thereby organisms carrying the adaptation have more chances to produce descendants and pass their genes to the next generation. Some classical examples of evolutionary adaptations include the long necks of giraffes that help them to eat leaves at the top of trees, light bones of flying birds, etc.
Outline the levels of organization starting with the smallest, organisms.
Answer:
Organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere. These have been arranged from the smallest to the largest. The biosphere is the largest level of organization while the organelle is the smallest. However, the basic form of life begins with the cell. Many cells together form a tissue and several tissue form an organ.
Sparrows produce an average of 5 eggs in each clutch. If there are more than 5. Parents can't adequately feed the young. if there are fewer. Predators may destroy the entire clutch. Which type of selection is this
Answer: it would be natural selection
Explanation:
almost all frogs undergo external fertilization
In most species of frogs, fertilization is external. The male frog grabs the female's back and fertilizes the eggs as the female frog releases them. The sperm and egg die quickly unless fertilization occurs.
Your friend Chris is interested in studying rats. He usually feeds them seeds, which is their normal diet. Sometimes when they are very good eats, he gives them cheese as a treat. He notices that his best-behaved rats are also very fat. How can he prove that the cheese treats are the cause of this weight gain?
Answer:
using simple common sense we can see that the best preformed rats get more food, which makes them fat
Explanation:
1- Explain the following expression:
"reversible manner".
Answer: means that oxyhaemoglobin thus formed can break down at tissues to relaese haemoglobin and oxygen back
Explanation:gooooooooooooooooooooooogle
propose two ways the body temperature of a sick person can be brought to normal
Answer:
ice pack
Explanation:
Answer:
Swimming in cool water, taking a lukewarm bath, or applying cold water to the body can reduce body temperature.
Explanation:
hope this helps you!
The worst kind of self-love is
Altruistic
Narcissistic
Unconditional
Social
which one is it
Answer:
Narcissistic Love
Explanation:
Answer: narcisism is the only one that makes sense
Explanation:
The table lists some human activities. A student claimed that out of these activities, sleeping is the only activity in which energy is not needed by the cells. Is the claim made by the student correct? Explain.
Answer:
No
Explanation:
In every action you make you use energy, when you sleep you still have to breathe and regulate tempetaure. If you stopped giving energy to your cells as you sleep you not be able to breathe.
what are two good things that science has done for people and animals or the earth
Answer:
help provide better medical care and technology
Explanation:
medical as in antibiotics, vaccines and medical tools.technology as in how much has it made our lives easier (information is easily accessible and connecting with our is faster)jellyfish is considered as the deadliest marine animal in the world. how it causes fatal to human?
Answer:
i got stung by a jellyfish :( anyways lol heres why they are fatal to humans
Explanation:
Their venom is considered to be among the most deadly in the world, containing toxins that attack the heart, nervous system, and skin cells. It is so overpoweringly painful, human victims have been known to go into shock and drown or die of heart failure before even reaching shore.
Please answer quickly!! It would mean a lot (: uh have a great day and good luck with your own questions!
How is oxygen and carbon dioxide exchanged between the cells of the body?
Gas Exchange | Anatomy and Physiology II
Question 3 options:
oxygen moves from the blood into the cells of the body, and carbon dioxide moves from the cells of the body into the blood
both oxygen and carbon dioxide move from the blood into the cells of the body
carbon dioxide moves from the blood into the cells of the body, and oxgyen moves from the cells of the body into the blood
both oxygen and carbon dioxide move from the cells of the body into the blood
Answer:
oxygen moves from the blood into the cell and the cell uses it in cellular respiration and then the CO2 goes from the cell to the blood to get it back to the lungs to get rid of it
Explanation:
distinguish between l-form bacteria and bacteria
Answer:
your answer Miss. or Mr.
Humans should consider microbes as beneficial organisms for all of the following reasons except:
Group of answer choices
they purify water in the hydrosphere.
they consume carbon dioxide during photosynthesis.
they decompose organic waste in the geosphere.
they generate oxygen in the hydrosphere.
they filter ultraviolet radiation in the atmosphere.
Answer:
they purify water in the hydrosphere
Microbes are beneficial as well as detrimental to the environment. They do not purify water in the hydrosphere instead pollute them. Option (A) is correct.
How does microbes affect water quality ?The quantity and variety of native microorganisms in an aquatic environment have a significant impact on water quality .
Physical, biological, and chemical contaminants from human activity can build up in aquatic systems and have significant ecological effects that can be detrimental in nature.
Microbial activity in the aquifer may have an impact on a number of ground-water quality indices, including pH, oxidation/reduction (redox) status, dissolved oxygen, or the presence of certain mineral components. This is especially true if there are elements in the aquifer that bacteria may use to flourish.
Therefore, option (A) is correct option.
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You have isolated a new single gene mutation in zebrafish you call Casper because the mutant fish are clear (no pigments in the scales). You perform the following crosses: Cross Progeny Wild type X Casper 20 clear, 19 normal Casper X Casper 21 clear, 10 normal a. You notice that each cross produced a similar number of clear offspring but different number of normal offspring. What is going on here
Answer and Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
Question 2 How will the plants that grow from this plant's fertilized seeds compare to the plants grown from its daughter tubers? A They will look the same because the plants grown from seeds are genetically identical to one another but not to the mother plant. B They will differ because only the plants grown from seeds will be genetically identical to the mother plant. C They will look the same because the plants grown from tubers and the plants grown from seeds will both be genetically identical to the mother plant. They will differ because only the plants grown from tubers will be genetically identical to the mother plant 1:53 PM
Answer:
I dont have an answer but what is the actual answer
Explanation:Confused (NO ANSWER)
They will look the same because the plants grown from seeds are genetically identical to one another but not to the mother plant. So, the correct option is (A).
What is Fertilization in plants?Fertilization is defined as the process of sexual reproduction, which occurs after pollination and germination which can be defined as the fusion of male gametes called pollen with female gametes called as ovum to form diploid zygote. It is a physio-chemical process that occurs after pollination of the carpel.
Steps of Fertilization occur in Plants
1. Pollination
2. Germination
3. Fertilization
Fertilization occurs through the pollen tube opening into the ovule through the micropyle and bursting into the embryo sac where the male nucleus fuses with an egg nucleus inside the ovule to form a diploid zygote, which then swells and develops into a fruit. These plants are similar in appearance when grown from seed but with the tuber method they will appear identical but not with the mother.
Thus, they will look the same because the plants grown from seeds are genetically identical to one another but not to the mother plant. So, the correct option is (A).
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What will most likely increase if there is a high death rate?
Answer:
Emigration
Explanation:
If there is a large number of deaths, then the population would move onto another area to find a mate, more food, and to be together to protect themselves from danger.
Hope this is what you were looking for, lmk if I can do anything else.
Which factor would increase population size?
a. more competitors
b. unable to hide, defend, or migrate
c. ability to resist disease
d. inadequate food and resources
e. extreme temperatures
Answer:
c
Explanation:
All the others would begin to kill off a population
Which is the general equation for cellular respiration?
A. carbon dioxide + water + energy --> oxygen + glucose
B. glucose + energy --> carbon dioxide +oxygen + water
C. carbon dioxide + glucose --
--> water + oxygen + energy
D. glucose + oxygen --> water + energy + carbon dioxide
Answer:
D. glucose + oxygen ⇒ water + energy + carbon dioxide
Explanation:
The reactants of cellular respiration, or the substances that are used for the beginning of the chemical process, are sugar (glucose) and oxygen. The products, or the results of cellular respiration, are water, carbon dioxide, and ATP energy. Thus, D is the answer.
The general equation for cellular respiration is glucose + oxygen --> water + energy + carbon dioxide, which is in option D. So, here, the correct answer is option D.
Glucose is a sugar molecule that serves as the primary source of energy for cells. It is derived from the breakdown of carbohydrates in the diet or can be produced through other metabolic processes. Oxygen is required for cellular respiration as the final electron acceptor in the electron transport chain. It is obtained from the air through breathing or from other sources in organisms that do not respire aerobically. During cellular respiration, glucose and oxygen undergo a series of metabolic reactions in different stages, including glycolysis, the citric acid cycle, and oxidative phosphorylation. The correct option is option D.
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Which best describes a recessive allele?
A. Always inherited from a parent when a dominant allele is inherited from the other parent.
B. Never inherited from a parent when a dominant allele is inherited from the other parent.
C. Only determines phenotype when a dominant allele for the same trait is present.
D. Does not determine phenotype when a dominant allele for the same trait is present.
Answer:
B!
Explanation:
A recessive allele can't be shown in the child unless there is no dominant allele.
Hope this helps, please mark me brainliest if it does! :)
Answer:option d
Explanation:
because ressesive alleles is not exhibited when a dominant allele is present. it may help to find genotype but not phenotype.