Suppose a particular predator in an area eats rabbits. If hunters kill off all of those predators, the rabbit population will increase, resulting in more ___ among the rabbits for food and space.

Proteins carry out all the following cell functions except:

What is the relationship between genetics and lifestyle choices in human growth and development?

A certain species of rodent eats only one type of plant. A disease attacks those plants and wipes them out. Which of the following best explains what might happen next?

The front leg of a cat, front flipper of a dolphin, and wing of a bat have the same structure and order of bones. These structures do not look alike and are not used in the same way, but the bones are similar. What might scientists say about them?

Some harmful bacteria have become able to resist antibiotics because ___.

Turtles, alligators, and crocodiles are thought to be related to dinosaurs. What is the main source of evidence that scientists use to show this relationship and how these organisms may have changed over time?

Based on the fossil record, scientists believe there have been several mass extinctions in the history of the Earth. Because of these mass extinctions, which of the following do scientists believe to be true?

Most fossils are found in:

What are some goals of agricultural engineering?

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