True or false? an increase in the number of phytoplankton in an aquatic ecosystem is always beneficial.

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

Environmental differences within ecosystems are generally caused by

Need an answer asap 45 points and brainlest to the first person to answer why do scientific theories, such as biological and chemical evolution, represent the strongest explanation of the changes observed in the fossil record. must be in sentence form how can scientific theories on evolution and the fossil record change over time? must be in sentence form