1. Introduction to Biology

Which of the following best describes the difference between abiotic and biotic factors in an ecosystem?

Which of the following is NOT a controllable health factor related to the characteristics of life?

Which term describes the arrangement of living things in an orderly way?

Polar bears are adapted to stay warm by growing thick fur. These organisms most likely live in a:

Which of the following are abiotic factors as well as basic needs that living things compete for?

Which characteristic of life is best demonstrated when a student's heart beats faster during and after strenuous exercise?

About one-third of older people have __________, also known as high blood pressure.

Why is a protozoan considered animal-like?

Which of the following is considered the simplest body structure that is alive?

Which of the following cycles is essential to all living organisms?

Which of the following best describes a biotic factor?

Which term describes the characteristic that varies among individual members of a population?

Which of the following is not a characteristic of all living things?

Which term best describes a group of individuals that belong to the same species and live in the same area?

Sponges are classified as animals because they cannot: