What is an apex predator? a) A consumer eaten by no other species
b) A producer of the highest nutritional value
c) A consumer living at the top of a mountain
d) A consumer that eats more than one species

Acommon kind of mechanical weathering is called

An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?

What tool do geneticists use to predict the outcome of genetic crosses? a. karyotype b. punnett square c. centrifuge