Hippos are being endangered mainly because the poachers hunt them for their meat and their ivory teeth
You could talk about how plants supply food for animals.
E.g cacti provide food and water for desert animals and rodents.
small rodents provide food for larger animals and snakes.
some animals will clean larger animals in a mutualistic relationship.
This answer is true because of the biodiversity law
"Scarus frenatus" I think
the true answer is C. Sea levels rose over 300 feet