AP Bio Insta-Review: Unit 8

Front

What is density?

Back

Density is a measure of how much mass is contained in a given volume. It is often expressed as mass per unit volume (e.g., grams per cubic centimeter).

Front

Which of the following does not represent density?

Back

Number of offspring in each generation.

Front

What is an autotroph?

Back

An autotroph is an organism that produces its own food from inorganic substances, typically through photosynthesis or chemosynthesis.

Front

What is the primary function of autotrophs in an ecosystem?

Back

Autotrophs serve as primary producers, converting solar or chemical energy into organic compounds that provide energy for other organisms.

Front

What is an endotherm?

Back

An endotherm is an organism that generates heat through metabolic processes to maintain a stable internal body temperature.

Front

What is the difference between endotherms and ectotherms?

Back

Endotherms generate their own heat, while ectotherms rely on external environmental sources to regulate their body temperature.

Front

What is the significance of auditory communication in animals?

Back

Auditory communication allows animals to convey information over long distances, especially in dark or dense environments.

Front

What is visual communication in animals?

Back

Visual communication involves the use of body language, colors, and movements to convey messages between individuals.

Front

What is a mating dance?

Back

A mating dance is a visual display performed by animals to attract mates, often involving specific movements and postures.

Front

What is the role of chemical signals in animal communication?

Back

Chemical signals, such as pheromones, are used by animals to communicate information about territory, mating, and social status.