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Lady_Fox [76]
3 years ago
7

Which of these must exist for natural selection to cause change ?

Biology
1 answer:
sashaice [31]3 years ago
3 0

Answer:

The answer is A.

Explanation:

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nikitadnepr [17]

A.. Prokaryotic cells


7 0
3 years ago
What you eat, I mix food with chemicals made by your body, then I churn up your food into smaller parts. What am I?
vazorg [7]

Answer:

Chemical digestion involves the secretions of enzymes throughout your digestive tract. These enzymes break the chemical bonds that hold food particles together. This allows food to be broken down into small, digestible parts.

H

4 0
3 years ago
Form a hypothesis about how the loss of estuaries can increase erosion along shorelines<br>​
lakkis [162]

Answer:

The hypothesis can be made as follows:

' If there are less or no estuaries in a river, then there will be more erosion at the shorelines.'

A hypothesis is a tentative statement which can either be supported through experiments or proven to be wrong.

In the following scenario, we can conduct experiments by taking into observation those rivers which have estuaries and those which do not have estuaries. We can then compare the erosion of the shorelines of the rivers to validate our hypothesis.

3 0
3 years ago
More objects can be dissolved in water than in sulfuric acid. ice true or false
Gelneren [198K]
True :) Acid cant burn its self. 
6 0
3 years ago
If you found a human skeleton that you believe is approximately 20,000 years old, which radioisotope would you use to date it?
dusya [7]
14C (carbon-14) can be used to date a 20,000 year old skeleton
3 0
3 years ago
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