Which of the following is a Density Independent Factor that may affect the size of a population? A. Predation
B. flooding
C. Drought
D. Two of these

Match the digestive enzymes to the macromolecules they to digest. break down fats into glycerol and fatty acids break down carbohydrates into simple sugars break down nucleic acids into nitrogenous bases and simple sugars break down proteins into amino acids

Connection compare and contrast genetic engineering to the process of natural selection. select all statements that are true.

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