Answer:
B
Explanation:
because their structures become more complex. Such as the human brain, over time we get more knowledge.
If the offspring is a female, it means she got an X chromosome from her mom, and an X chromosome from her father.
<span>Lactation is different between monotremes and therian mammals because monotremes are oviparous and have cloaca . Oviparous means they lay eggs, and generally animals that lay eggs do not nurse their young or lactate. Therian mammals give live birth, these are the animals that use breast milk to nurse their young.</span>
The main purpose is protection. The lipid bilayer protects the cell from viruses and other threats to the cell. It also maintains homeostasis within the cell by monitoring the amount of substances the enter or exit the cell.
