Answer:
i believe its B.) The pH level of blood drops due to excess amount of CO2. The brain sends signal to
the diaphragm to increase breathing in order to get rid of excess CO2
Explanation:
i hope this helps
im really sorry if its wrong
Answer:
23 chromosomes
Explanation:
Egg and sperm cells are produced by meiosis, which means they will be left with a half set of chromosomes.
Answer:
C. Mammary glands
Explanation:
The mammals have multiple different morphological features that distinguish them from the other animal groups, some are unique to them, some are unique as a combination. The morphological feature that is unique for the mammals and is most recognizable for them are the mammary glands. The mammary glands are actually the reason why this group of animals has the name it has. All three types of mammals, placentals, marsupials, and monotremes have these glands through which they feed their young.