PLS SOMEONE HELP THIS IS DUE TONIGHT WILL MARK BRAINLIEST

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

What are two ways that harvesting algae from the ocean may benefit human society? how might the harvest of algae negatively impact the ocean communities where that algae grows? how could this be prevented?

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?