Middle school Biology Unit 2

Question 1

What is the primary method many animals use to have offspring?

Answer 1

Many animals use sexual reproduction to have offspring.

Question 2

What typically occurs during mating in animals?

Answer 2

An animal typically mates with an individual of the opposite sex, resulting in fertilization and the production of offspring.

Question 3

How is an animal’s reproductive success measured?

Answer 3

An animal’s reproductive success is related to the number of offspring it has during its life.

Question 4

What does a higher number of surviving offspring indicate?

Answer 4

An animal that has more surviving offspring likely has a higher reproductive success.

Question 5

What types of behaviors do animals carry out to increase reproductive success?

Answer 5

Animals carry out certain behaviors to increase their reproductive success, including displays that attract mates and protecting and feeding young offspring.

Question 6

What behaviors increase the chance of producing offspring?

Answer 6

Behaviors that increase the chance of producing offspring include displays that attract mates.

Question 7

What behaviors increase the chance that offspring will survive?

Answer 7

Behaviors that increase the chance that offspring will survive include protecting and feeding young offspring.