Science/ Animals

Question 1

What is a cell?

Answer 1

The basic unit of structure and function in living things

Question 2

What are the major functions of animals ?

Answer 2

-obtain food & oxygen
- keep internal conditions stable
-move
-reproduce

Question 3

How are animals classified?

Answer 3

The are classified into groups called phyla

Question 4

What are the levels of organization?

Answer 4

Cells form tissues
Tissues form organs
Organs combine to form a system
(Cells>tissues>organs>organ systems)

Question 5

What is an adaptation?

Answer 5

Structures or behaviors that allow animals to perform basic functions in their environments

Question 6

What gives animals raw materials for growth and energy?

Answer 6

Food

Question 7

What is needed by body cells to release energy from food?

Answer 7

Oxygen

Question 8

True or False? Most animals have a cavity inside their body where food is broken down into substances the body can use?

Answer 8

True

Question 9

Why must animals maintain a stable environment within their bodies?

Answer 9

Becuase if they don’t maintain a stable environment they could not survive for long

Question 10

What are most animal movements related to?

Answer 10

Obtaining food

Question 11

True or false? Some animals don’t move from place to place?

Answer 11

TRUE

Question 12

What is sexual reproduction?

Answer 12

The process by which a new organism develops from the joining of two sex cells- a male sperm cell and a female egg cell

Question 13

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

Answer 13

Fertilization

Question 14

True or false? When a sperm cell and an egg cell unite the new individual Does NOT have any characteristics from either parent

Answer 14

FALSE

Question 15

What is the process by which a single organism produces a new organism identical to itself?

Answer 15

Asexual reproduction

Question 16

True or false? Asexual reproduction involves the joining of sex cells ?

Answer 16

FALSE

Question 17

Biologist classify animals in the animal kingdom into about 35 major groups called. Each group is called a?

Answer 17

Phylum

Question 18

True or false? Evidence suggest that all animals arose from single cell ancestors.

Answer 18

TRUE

Question 19

What 3 things do biologists consider when they classify an animal?

Answer 19

A. Body structure
B. The way it develops
C. DNA

Question 20

True or false? An animal that does not have a backbone is called a vertebrate?

Answer 20

FALSE, it is called an invertebrate

Question 21

Which of the following is a vertebrate?
Bird, jellyfish, spider, crab?

Answer 21

BIRD

Question 22

A group of several different tissues is called?

Answer 22

An organ

Question 23

Animals are classified into major groups called?

Answer 23

Phyla

Question 24

The joining of a sperm and egg cell is called?

Answer 24

Fertilization

Question 25

What are the basic units of structure and function in living things?

Answer 25

Cells

Question 26

What are structures or behaviors that allow animals to perform the basic functions in their environments?

Answer 26

Adaptations

Question 27

An animal without a backbone is called a?

Answer 27

Invertebrate

Question 28

The process by which a single organism produces a new organism identical to itself is called?

Answer 28

Asexual reproduction

Question 29

What is the balanced arrangement of parts?

Answer 29

Symmetry

Question 30

Because a butterfly can be divided into two halves that are mirror images of each other it has what?

Answer 30

Bilateral symmetry

Question 31

Objects with many lines of symmetry that all go through a central point have what type of symmetry?

Answer 31

Radial symmetry

Question 32

True or false : the simplest animals called sponges usually have no symmetry

Answer 32

TRUE

Question 33

True or false: animals with radial symmetry have distinct front and back ends

Answer 33

FALSE

Question 34

Do humans have bilateral symmetry?

Answer 34

YES

Question 35

Which is more complex and larger? Animals with bilateral symmetry or animals with radial symmetry?

Answer 35

Bilateral

Question 36

Does bilateral symmetry allow for a streamlined balanced body that moves quickly and efficiently?

Answer 36

YES

Question 37

True or false? The sense organs of animals with bilateral symmetry have sense organs in the back end of their bodies?

Answer 37

FALSE. Animals with bilateral symmetry have sense organs which are located at the front end of their bodies

Question 38

Which type of symmetry would a sea urchin have?

Answer 38

Radial

Question 39

Does a sponge have symmetry?

Answer 39

No

Question 40

What type of symmetry do a beaver and a frog have?

Answer 40

Bilateral

Question 41

What type of symmetry does a sea star have?

Answer 41

Radial

Question 42

What type of symmetry does an ant have?

Answer 42

Bilateral

Question 43

If an animal has a head end and a tail end it has?

Answer 43

Bilateral symmetry

Question 44

All animals with what type of symmetry live in water?

Answer 44

Radial symmetry

Question 45

Animals with radial symmetry have many what?

Answer 45

Line of symmetry that does through a central point

Question 46

Animals with bilateral symmetry have how many lines of symmetry?

Answer 46

ONE ( it divides them into two parts)

Question 47

What are invertebrate animals that have no body symmetry and never have tissues or organs?

Answer 47

Sponges

Question 48

Do sponges usually stay in one place?

Answer 48

Yes and they attach to hard surfaces

Question 49

Jellyfish, sea anemones and corals are called?

Answer 49

Cnidarians

Question 50

What do cnidarians use to capture food and defend themselves?

Answer 50

Stinging cells

Question 51

Describe the body of a sponge

Answer 51

A hallow bag with a large opening and with many tiny pores covering its surface

Question 52

Do sponges have body symmetry?

Answer 52

NO

Question 53

Do sponges have tissues and organs?

Answer 53

NO

Question 54

Compare sponges and cnidarians

Answer 54

Sponges- hallow bag with pores, Cnidarian- radial symmetry bowl or vase shaped and their tentacles contain stinging cells. Both types can have asexual reproduction called budding Both can reproduce sexually

Question 55

A network of what supports the bodies of sponges?

Answer 55

Spikes

Question 56

Sponges reproduce asexually in a process called?

Answer 56

Budding

Question 57

Is the following true or false? Sponges have separate sexes?

Answer 57

FALSE

Question 58

What are cnidarians?

Answer 58

Invertebrates that have stinging cells and take food into a central body cavity

Question 59

What are characteristics of polyps?

Answer 59

- mouth opens at top shaped like a vase - they are attached to an underwater surface - they have radial symmetry

Question 60

Tell how a Medusa and a polyp are different

Answer 60

Polyp such as a sea anemone is shaped like a vase with mouth opening at top A Medusa such as a jellyfish is shaped like a bowl with a mouth that opens downward

Question 61

How does a cnidarian capture prey?

Answer 61

They use stinging cells to capture food . When the stinging cell touches prey the threadlike structure explodes out of the cell and into the prey. Then the tentacles pull the prey into its mouth

Question 62

True or false? A jellyfish can not swim

Answer 62

FALSE

Question 63

Do cnidarians use stinging cells to capture prey?

Answer 63

Yes

Question 64

Do cnidarians take food into a central body cavity?

Answer 64

Yes

Question 65

Are cnidarians able to move?

Answer 65

Yes

Question 66

Do cnidarians expel indigents food through their mouth?

Answer 66

Yes

Question 67

What are coral reefs built by?

Answer 67

Cnidarians

Question 68

Do coral polyps produce hard stony skeletons around their soft bodies?

Answer 68

Yes

Question 69

Are coral reefs limited in size?

Answer 69

NO

Question 70

True or false? When coral polyps die, their skeletons break down to dust?

Answer 70

False their hard skeletons remain , the mounds of these skeletons form coral reefs

Question 71

True or false? Coral reefs are home to more species of fish and invertebrates then any other environment on Earth

Answer 71

TRUE

Question 72

Explain what function water performs for sponges

Answer 72

Water currents carry food and oxygen to them are take away their waste products .

Question 73

How does a sponge defend itself?

Answer 73

It uses it’s spikes

Question 74

What are the two methods of sponge reproduction?

Answer 74

Budding ( asexual reproduction) and Sexual reproduction

Question 75

What happens with budding I. Sponges? ( asexual reproduction)

Answer 75

New sponges grow from the sides of an adult sponge. Eventually the buds break free and begin life on their own

Question 76

What happens in sexual reproduction in sponges?

Answer 76

The sperm cells are released into the water and enter another sponge and fertilize the egg cell

Question 77

Identify two different body plans of cnidarians?

Answer 77

Medusa vs polyp

Question 78

How do cnidarians reproduce?

Answer 78

Both sexually and asexually. Budding is asexual .

Question 79

What is a larva?

Answer 79

The immature form of an animal

Question 80

What are the three main phyla of worms ?

Answer 80

Flatworms, roundworms and segmented worms

Question 81

Do worms have bilateral symmetry?

Answer 81

Yes

Question 82

Do worms have a brain?

Answer 82

Yes worms are the simplest animals to have a brain

Question 83

How do worms reproduce?

Answer 83

Both asexually and sexually

Question 84

List five characteristics shared by all worms

Answer 84

1- long narrow bodies without legs 2- bilateral symmetry 3- have tissues, organs and body systems 4- invertebrates 5- have head and tail ends

Question 85

True or false? Worms do not have brains

Answer 85

False

Question 86

True or false? Worms have sense organs in their heads ends to respond to food, mates and predators

Answer 86

TRUE

Question 87

True or false? Worms can only reproduce sexually

Answer 87

False they can reproduce both sexually and asexually

Question 88

True or false? In some work species each individual has both male and female sex organs

Answer 88

TRUE

Question 89

An organism that lives inside or on another organism and takes its food from that organism is a

Answer 89

Parasite

Question 90

True or false? A parasite has no effect on its host

Answer 90

FALSE

Question 91

Where do free living flatworms live?

Answer 91

Gliding over rocks in ponds, slide over dame soil or they swim slowly through the oceans

Question 92

Which two are characteristics or planarians? A. Parasites B . Scavenger C. Herbivore D. Predator

Answer 92

B and d Scavengers and predators

Question 93

What are free living organisms such as planarians?

Answer 93

Free living organisms do not live in or on other organisms

Question 94

What does the term scavenger mean?

Answer 94

They live on dead or decaying material

Question 95

What is a tapeworm ?

Answer 95

It is a parasitic flatworm

Question 96

What happens through the worms anus?

Answer 96

Waste exits in the one way digestive system

Question 97

What is a host?

Answer 97

An organism in or on which another organism gets its food from

Question 98

What type of circulatory system do earthworms have?

Answer 98

A closed circulatory system

Question 99

How must the earthworms keep their skin?

Answer 99

Moist

Question 100

Are earthworms segmented worms?

Answer 100

Yes

Question 101

Do roundworms have a two way digestive system?

Answer 101

No they have a one way digestive system