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yulyashka [42]
3 years ago
9

Hello.................................................,.....what's a vaccine.thankyou​

Biology
1 answer:
cestrela7 [59]3 years ago
8 0

A vaccine is a medical material that mimics the pathogen, but in a harmless way. When our body's immune fights it off, it remembers how to fight the real pathogen when it enters our body. So, it protects us from diseases.

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Natural selection occurs in a population of organisms of the same species when the individuals
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Natural selection occurs in a population of organisms of the same species when the individuals are C. are genetically different and exhibit different characteristics.

<h3>What is the Natural selection?</h3>

Natural selection most effective acts at the populace's heritable trends: choosing for useful alleles and, thus, growing their frequency withinside the populace, at the same time as choosing in opposition to deleterious alleles and, thereby, reducing their frequency. This procedure is referred to as adaptive evolution.

  1. Natural selection can most effective arise if there may be variant amongst contributors of the equal species.
  2. Natural selection is the procedure thru which populations of living organisms adapt and change. Individuals in a populace are certainly variable, that means that they're all exclusive in a few ways. This variant manner that a few people have trends higher perfect to the surroundings than others.

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2 years ago
To be considered a living thing an organism must be able to a.move independently B.adapt to change c. Produce oxygen d.increase
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The answer is D. increase in size
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3 years ago
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What is a good example of a response-based definition of stress?
TEA [102]

Answer:

What is a good example of a response-based definition of stress?

Bruce experiences stress because his heart rate increased when he noticed Jack had a knife.

Explanation:

Stress can have many different causes. In this case, it is produced by seeing danger in Jack by having a knife. His heart rate increases because this is a common response in stress, which would enable people to scape. It is important to control stress lebels.

A stressor is distinguished as a threat. If someone anticipates that it could lead to some kind of harm, loss, or other negative consequence. However, if you see the positive side and believe that it carries the potential for gain or personal growth, it would be appraised as a Challenge.

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3 years ago
what happens to the two small balloons inside as you pull down the big balloon at the bottom of the model?​
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The lower pressure balloon will expand. Figure 2 (above left) shows a typical initial configuration: the smaller balloon has the higher pressure. So, when the valve is opened, the smaller balloon pushes air into the larger balloon. It becomes smaller, and the larger balloon becomes larger.

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Explanation:

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Koalas are marsupials that are found in eastern Australia. Although their ancestors lived mostly on the ground, modern koalas sp
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Their fur color is very similar to the color of the bark on the eucalyptus tree.
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