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Law Incorporation [45]
3 years ago
7

Chloroplasts and Mitochondria reproduce independently from the eukaryotic cell it is within.

Biology
1 answer:
Nina [5.8K]3 years ago
5 0
True, I made the quizlet
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Which of the following was an early realization that gave rise to Darwin's theory of natural selection?
neonofarm [45]
D. Darwin's theory of natural selection shows that organisms evolve based on which one's survive the best and thrive. 
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3 years ago
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As a baby, Gina was exposed to a pathogen. Because of passive immunity, Gina's body was able to fight off the pathogen before sh
Serhud [2]

First of all, it is important to understand the difference between passive and active immunity.

Passive immunity is when we are given antibodies that were not produced by our own body (for example those transferred from mother to child, or those taken as part of medication or therapy - note that the former would be an example of naturally acquired passive immunity and the latter of artificially acquired passive immunity).

Active immunity, on the other hand, refers to antibodies that were produced by our own bodies due to exposure to a pathogen or part thereof - this can also be naturally acquired, such as when we are infected by a pathogen, or artificially, such as when we are vaccinated.

Given this information, what enabled Gina to fight the pathogen would be the second answer (antibodies she received from her mother), however we can also look at the other answers and discount them as false to be sure:

Answer 1 - high fever caused by a pathogen

The question states that Gina was able to fight off the pathogen before she got sick - a fever suggests that:

a) she is already sick

b) her body is launching its own immune response

Answer 3 - antibodies she received from a vaccination

The antibodies produced as a result of vaccination are produced by your own body (despite being stimulated artificially through exposure to the pathogen), thus this is not the correct answer.

Answer 4: inflammation caused by antibodies

This answer is incorrect due to the fact that antibodies do not directly cause inflammation.

Thus, the correct answer is the second one 'antibodies she received from her mother'.

Hope that helps :)

3 0
3 years ago
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If you were standing on a dock and it took 200 seconds for 20 waves to pass by you, how long was the wave period?
-Dominant- [34]
It would be 10 seconds
8 0
3 years ago
Compare and contrast populations and communities
zloy xaker [14]
A population is essentially just a collection of all living things in one category. People are one population, insects are another, etc. Communities are "more organized" populations. Soccer players hang out with soccer players, spiders hang out with spiders. We split into "our people" within our population. 

I know that may be a little confusing, but if you have anymore questions feel free to ask. I hope I was able to help. Best of luck!
7 0
3 years ago
Point source pollution is much more difficult to track and clean up than nonpoint source pollution. Please select the best answe
LekaFEV [45]
Point source pollution is a single, identifiable location of a pollution like a drainage or a pipe. On the other hand non-point source pollution refer to wastes that are disposed at a wide area and cannot be easily determined where the sources are. The answer for this is false. It is the non-point source pollution that is difficult to track and to control.
7 0
3 years ago
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