Answer:
en los seres humanos se desarrollan en el útero
Explanation:
Its natural selection. Due to genetic variations, some animals have traits more desirable then others. This animals will survive and reproduce better, over time creating a whole new species.
Answer:
false
Explanation:
crustaceans are organisms like crabs and lobsters, while arachnids are organisms like spiders. To help me remember, I think of arachnophobia, which is the fear of spiders.
They are a indian group, that is your answer.