ch10

Question 1

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

Answer 1

nervous system, skeletal system, muscular system

Question 2

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

Answer 2

wolf

Question 3

Which of these provides support and protection for many insects?

Answer 3

exoskeleton

Question 4

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

Answer 4

capillaries.

Question 5

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

Answer 5

carbon dioxide and oxygen

Question 6

Why are some muscles attached to bones?

Answer 6

They move the bone to help move the body

Question 7

Which animal has the simplest and least organized nervous system?

Answer 7

cnidarian

Question 8

Budding is a form of

Answer 8

asexual reproduction.

Question 9

An offspring that is the result of asexual reproduction

Answer 9

is genetically identical to its parents

Question 10

After they are born, most mammals

Answer 10

are helpless for a long time.

Question 11

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 11

metamorphosis.

Question 12

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

Answer 12

webbed feet.

Question 13

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

Answer 13

life science

Question 14

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

Answer 14

fertilization

Question 15

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

Answer 15

response.

Question 16

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

Answer 16

specialized

Question 17

Yeast cells undergo a form of asexual reproduction called ____________________.

Answer 17

budding

Question 18

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

Answer 18

?

Question 19

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 19

stimuli

Question 20

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

Answer 20

internal

Question 21

____________ 21. When a muscle contracts, it returns to its original length.

Answer 21

F, relaxes

Question 22

____________ 22. During internal fertilization, an embryo forms inside the female’s body.

Answer 22

T

Question 23

____________ 23. A butterfly’s mouthparts are adapted to lapping up nectar.

Answer 23

F, sucking

Question 24

____________ 23. A butterfly’s mouthparts are adapted to lapping up nectar.

Answer 24

F, cellular respiration

Question 25

____________ 25. Snakes move by contracting muscles connected to their ribs and backbone.

Answer 25

T