Proteins is what comes in and out of the cell
Answer:
In the second picture, the answer is A to attach to a host cell.
In the third, the fourth and the fifth the answer is D.
Explanation:
So the organisms could be classified in the same animal families
The Neolithic marks the period when our specie developed farming and domesticated animals.
How can reproductive isolation lead to speciation<span>? If populations cannot mate successfully with one another, genetic differences may accumulate in the populations. Over time they become very different and give rise to new species.</span>
