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Effectus [21]
3 years ago
11

Which of the following plasma proteins is responsible for attacking pathogens?

Biology
1 answer:
schepotkina [342]3 years ago
5 0

Answer:

The answer would be Antibodies.

Hope this helps!

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cestrela7 [59]
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8 0
3 years ago
Describe how a flu vaccine protects the human body.
Bingel [31]
Basically because the flu shot is a stream of the flu. And when your body gets injected with it. It helps your body to become immune or able to fight the flu off quickly because you have had a little of the flu in you already.

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5 0
3 years ago
A bicycle consists of which types of simple machines? Check all that apply.
Marina CMI [18]

Hello! :)

It turns out that there are at three simple machines found in a bicycle: lever, pulley, and wheel-and-axle. There are three more kinds of simple machines: an inclined plane, a wedge and a screw. When a machine is comprised of more than one type of simple machine, it is called a compound machine.

Hope I helped and answered in time!

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5 0
3 years ago
In this experiment, how many chromosomes were present when meiosis i started? 2. in this experiment, how many nuclei are present
wariber [46]
1. The answer depends on your picture.
DNA is packed and condensed with proteins in the form of chromosomes.

Since the process of division is going to start that means each chromosome will have an X shape. They had the DNA content copied once (in the S phase). The original, plus the copy created, form the X.

You just have to count the number of X's in the picture.

2. The answer is 4 nuclei.
Since the process of division happening is meiosis, that means that four new cells will be originated from a cell that's dividing.
So, four new cells each one with a nucleus, that means 4 nuclei in total.

If this was mitosis, only 2 new cells would be formed which means 2 nuclei

3. The number of chromosomes depends on your picture/exercise.

The answer would be half of the number of chromosomes that you started in the meiosis 1.
This time, chromosomes won't have an X shape since the copies were separated. At the end of the process, each chromosome has just one chromatid.
6 0
4 years ago
Why is it important for people to study environmental science.
Vinvika [58]

Environmental science is the study of interactions among the physical, chemical and biological components of the environment. Environmental science enlightens us on how to conserve our environment in the face of increasing human population growth and anthropogenic activities that degrade natural resources and ecosystems.

6 0
4 years ago
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