chapter 10

Question 1

Which of these provides support and protection for many insects?

Answer 1

exoskeleton

Question 2

What are the two gases that animals exchange with their surroundings?

Answer 2

carbon dioxide and oxygen

Question 3

Suppose that you close a window because you notice that rain is falling. Your action in closing the window is a(n)

Answer 3

response.

Question 4

Why are some muscles attached to bones?

Answer 4

They move the bone to help move the body.

Question 5

Which animal has the simplest and least organized nervous system?

Answer 5

cnidarian

Question 6

What three systems work together to make an animal move about?

Answer 6

nervous system, skeletal system, muscular system

Question 7

An adaptation that helps amphibians move from place to place in water is

Answer 7

webbed feet.

Question 8

Tiny, thin-walled blood vessels where the blood and body cells exchange substances are called

Answer 8

capillaries.

Question 9

Which animal has a digestive system most similar to a human?

Answer 9

wolf

Question 10

An offspring that is the result of asexual reproduction

Answer 10

is genetically identical to its parent.

Question 11

The joining of an egg cell and a sperm cell is called

Answer 11

fertilization

Question 12

Budding is a form of

Answer 12

asexual reproduction.

Question 13

As it changes from tadpole to adult, a frog’s body undergoes a series of dramatic changes. Hind legs develop and the tail disappears. This process is called

Answer 13

metamorphosis.

Question 14

After they are born, most mammals

Answer 14

are helpless for a long time.

Question 15

Which branch of science includes the study of plants, animals, and the human body?

Answer 15

life science

Question 16

The traffic light turns green, and the driver steps on the gas pedal to make the car move forward. The green traffic light acted as a(n) ____________________ that caused a response in the driver.

Answer 16

stimulus

Question 17

The more complex an animal’s nervous system is, the more _____________ its sense organs are.

Answer 17

specialized

Question 18

Yeast cells undergo a form of asexual reproduction called ____________________.

Answer 18

budding

Question 19

One difference between sharks and most fishes is that sharks have ____________________ fertilization.

Answer 19

internal

Question 20

During incomplete metamorphosis, an egg develops into a(an) ____________________.

Answer 20

nymph

Question 21

A butterfly’s mouthparts are adapted to lapping up nectar.

Answer 21

false, sucking

Question 22

When a muscle contracts, it returns to its original length.

Answer 22

false, relaxs

Question 23

During internal fertilization, an embryo forms inside the female’s body.

Answer 23

true

Question 24

Snakes move by contracting muscles connected to their ribs and backbone.

Answer 24

true

Question 25

Snakes move by contracting muscles connected to their ribs and backbone.

Answer 25

cellular respiration