Answer:
evolution of bidepadlism,
increase in enamel thickness,
regular use of stone tools, enlargement of brain to around 1,450 cc
Explanation:
Because they are the same chemical reaction but reversed. Cellular respiration takes glucose (from nutrient/food) and oxygen (from atmosphere) in order to make CO2 (think about exhaling) and H20 (water).
(I don't remember this clearly so it may be wrong, i'll look into it and come back!)
Answer:
....I think you should give us the scenarios first so that we can help you.
ANSWER : have a specific shape related to their specific function
Answer:
A to protect them from the sun but still allow air to flow near their skin.
Explanation:
I think
