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cestrela7 [59]
3 years ago
7

What are two species most commonly poached worldwide, why are they poached?

Biology
1 answer:
marishachu [46]3 years ago
3 0
There are many species being poached. Some include:
- Whales
- Sharks
- Turtles
- Tigers

They all have something valuable, causing them to be poached and sold.
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If a researcher has a DNA sample with a concentration of 0.6 micrograms per microliter, how many microliters of DNA must be tran
Art [367]

Answer:

0.325 microliters

Explanation:

1 microgram = 1000 nanograms

DNA sample concentration= 1000 X 0.6 = 600 nanograms / microliters

We need a total of 50 microliter reactions, and the concentration should be 3.9 nanograms per microliter.

So, we need total 50 X 3.9 = 195 nanograms in 50 microliters.

Therefore, it required 195 / 600 = 0.325 microliters of DNA sample to be transferred.

7 0
3 years ago
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2 years ago
How do scientists know that dark matter and dark energy exist even if we can not see them
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We only know it's there because we can see the effect of its gravity. Scientists study dark matter by looking at the effects it has on visible objects. Scientists believe that dark matter may account for the unexplained motions of stars within galaxies. Computers play an important role in the search for dark matter information.

Explanation:

Hope That helps!

7 0
3 years ago
When using a hammer, a person makes use only of the bones and muscles in his/her arm
Debora [2.8K]

Answer:

false

Explanation:

in all living organisms, it consist of  systems that shows a  complemetary nature of structure and function at all organizational  levels . these levels are cells, organs, tissues, organ systems, whole organisms,  and ecosystems. every part plays a role in every function in the body.

8 0
3 years ago
frequencies of alleles in a population occasionally change due to random changes. this process is called
Leno4ka [110]

Answer: Genetic Drift

Explanation:

It's all based on sampling errors.

8 0
2 years ago
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