What is used to cut the chromosome open?

Marianne is comparing two animals: a fruit fly and a fruit bat. she asks, "do a fruit fly and a fruit bat share a common ancestor in their evolutionary history? " according to evolutionary theory, what is the answer to marianne's question?

What will happen if deforestation continue to destroy the green plant on the planet

Which of the following types of stars are dim but can have high surface temperatures? giants main sequence stars supergiants dwarfs