Answer:
This is the famous extinction event that brought the age of the dinosaurs to an end. In each of these cases, the mass extinction created niches or openings in the Earth's ecosystems. Those niches allowed for new groups of organisms to thrive and diversify, which produced a range of new species.
Explanation:
Commensalism because the birds is benefiting but the tree is not harmed
Answer:
????????? what is that????????
Each person has 23 daughter chromosomes and 23 male chromosomes