Answer:
A is the correct answer
Explanation:
the existed about 3.8to 4.0 billion years ago
This should be the answer.
- Head
- UP,
- STRAIGHT
- ERECT,
- UP
- Looking forward.
<h3>What is the anatomic position?</h3>
The anatomic position refers to the position in which a person is standing upright facing the observer, feet parallel and flat on the floor, and palms facing forward. The upper limbs are at the body’s sides with the palms facing forward.
Thus, this could be the answer.
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It starts in the mouth. You start to chew in which the glands that produce saliva make it easier to send down the esophagus
Their differences may eventually stop the separated squirrels from breeding with one another this is an example of an Allopatric speciation
Explanation:
In allopatric speciation, species from the same population evolve some different characters due to the differences in geographical locations.
In this scenario, the species become reproductively isolated and diverge.
The mating times of the squirrel have changed due to the environmental changes.
They no longer interbreed and hence no viable offspring thus sexually isolated from each other.
