Answer:
C. the cultural tradition of using stones to crack nuts has arisen in only some populations
Explanation:
The cultural tradition of using stones to crack nuts has arisen in only some populations of the Chimpanzees who live in environments containing oil palm nuts, meaning not all Chimpanzees actually use stone to crack down the nut except few of them and this because their environment contain oil palm nuts.
Answer:
mitral valve
Explanation:
The mitral valve and tricuspid valve are located between the atria (upper heart chambers) and the ventricles (lower heart chambers).
Answer:
Because butterfly helps in asexual reproduction in plants and nutrition for butterfly
Explanation:
Answer:
D
Explanation:
plant cells are the only kind of cell to have cell walls
