How might a protein lose its structure?

This is what I found on the internet: Denaturation is a process in which proteins lose their shape and, therefore, their function because of changes in pH or temperature.

I hope this helps

d. in sexual reproduction, offspring have more chromosomes than

either parent.

asexual reproduction results in offspring which are genetically the same as the parent organism (not counting a rare mutation). sexual reproduction produces a random mixture of the genetics derived from both parents

explanation:

organisms that are both used in toothpaste as well as cause malaria are protista and monera.