Chapter 4 Science

Question 1

Homeostasis

Answer 1

Keeping internal body conditions stable

Question 2

Adaptations

Answer 2

Structures and behaviors that allow animals to preform their functions

Question 3

Vertabrates

Answer 3

All animals are either vertebrates or invertebrates

Question 4

Invertebrates

Answer 4

Are animals without a back bone

Question 5

Tissue

Answer 5

Is a groups of similar cells that perform a specific function

Question 6

Organ

Answer 6

Is made up o; different tissues

Question 7

Radial symmetry

Answer 7

A animal has these

Question 8

Bilateral symmetry

Answer 8

An animal or an object can have these if only one line of symmetry can be drawn to divide it into two halves that are mirror images

Question 9

Cnidarians

Answer 9

Jelly fish and corals are a example of this

Question 10

Mollusk

Answer 10

Invertebrates with soft boa dies that are often protected by a hard shell

Question 11

Arthopods

Answer 11

Crabs and spiders are these

Question 12

Exoskeleton

Answer 12

The outer covering

Question 13

Echindorm

Answer 13

Is an invertebrate that has a internal Skelton

Question 14

Endoskelton

Answer 14

An internal Skelton

Question 15

Chordate

Answer 15

Have three characters so

Question 16

Notocheod

Answer 16

Is a flexible rod that supports a chordate back

Question 17

Vertebrate

Answer 17

The backbone is made up of a stack of many small bones

Question 18

Ectotherm

Answer 18

An animal that produces little internal body heat

Question 19

Endotherm

Answer 19

Is an animal that controls the internal heat it produces

Question 20

Fish

Answer 20

Is a Vera rate that lives in water

Question 21

Cartilage

Answer 21

Their skeletons are made of this

Question 22

Amphilabian

Answer 22

Is a vertebrate that is ectohermak

Question 23

Reptile

Answer 23

Is an ecthermic vertebrate

Question 24

Bird

Answer 24

Is an endothermic vertebrate

Question 25

Mammals

Answer 25

Are endothermic vertebrate

Question 26

Mammary glands

Answer 26

Milk produced by organs called

Question 27

Monotremes

Answer 27

Lay eggs

Question 28

Marsupials

Answer 28

are born at an ear,y stage

Question 29

Placental mammals

Answer 29

Develops inside its mother’s body

Question 30

Placenta

Answer 30

The mother and the embryo through an organ