2919 Mod11

Question 1

Invertebrates

Answer 1

Animals that lack a back bone

Question 2

Vertebrates

Answer 2

Animals that possess a backbone

Question 3

Spherical symmetry

Answer 3

An organism possesses we are going to symmetry if it can be cut up into two identical house by any cut that runs through the organism center

Question 4

Radial symmetry

Answer 4

An organism possesses radial symmetry if it can be cut into two identical halves by any longitudinal cut through its center

Question 5

Bilateral symmetry

Answer 5

In organism possesses bilateral symmetry if it can be cut into two identical have just buy a single longitudinal cut along it center which divides it into right and left halves

Question 6

Epidermis

Answer 6

An outer layer of cells designed to provide protection

Question 7

mesenchyme

Answer 7

The jelly like substance that separates the epidermis from the inner cells in a sponge

Question 8

Collar cells

Answer 8

flagellated Cells that push water through a sponge

Question 9

Amoebocytes

Answer 9

Cells that move using pseudopods and perform different functions in different animals

Question 10

Gemmule

Answer 10

A cluster of cells in case in a hard, spicule-reinforced shell

Question 11

Polyp

Answer 11

The sessile tubular form of a cnidarian with Mouth and tentacles at one end and basal disk at the other

Question 12

Medusa

Answer 12

Are you free – swimming cnidarian with a bell – shaped body and tentacles

Question 13

Epithelium

Answer 13

Animal tissue consisting of one or more layers of cells that have only one free service because the other service but here’s to a membrane or other surface

Question 14

Mesoglea

Answer 14

The jelly like substance that separates the epithelials cells in a Cnidarian

Question 15

Nematocyst

Answer 15

Small capsules that contain a toxin which is injected in to pray or predators

Question 16

Anterior end

Answer 16

The end of an animal that contains its head

Question 17

Posterior end

Answer 17

The end of an animal that contains its tail

Question 18

Circulatory system

Answer 18

A system designed to transport food and other necessary services throughout the creatures body

Question 19

Nervis system

Answer 19

A system of sensitive cells that respond to stimuli such as a sound, touch, and taste

Question 20

Ganglia

Answer 20

Masses of nerve cell bodies

Question 21

Hermaphroditic

Answer 21

Possessing both the male and female reproductive organs

Question 22

Mantle

Answer 22

A sheet of tissue that encloses the vital organs of a mollusk, makes the mollusk’s shell, and performs respiration

Question 23

Shell

Answer 23

A tough, multi layered structured secreted by the mantle, generally used for protection, but sometimes for body support

Question 24

Visceral hump

Answer 24

A home that contains a mollusks heart, digestive and excretory organs

Question 25

Foot

Answer 25

A muscular organ that is used for locomotion and take a variety of forms depending on the animal

Question 26

Radula

Answer 26

An organ covered with teeth them all the ski uses to scrape food into their mouth’s

Question 27

Univalve

Answer 27

And organism with a simple shell

Question 28

Bivalve

Answer 28

An organism with two shells

Question 29

Do the vast majority of animals have backbones?

Answer 29

No

Question 30

How do you sponges get their prey

Answer 30

By pumping water through their bodies

Question 31

If a sponge is soft, does it contain spicules or spongin? What purpose do these substances serve in a sponge

Answer 31

Spongin | support the sponge

Question 32

What is the predominant mode of asexual reproduction in a sponge?

Answer 32

Budding

Question 33

What roles do amoebocytes play in the anatomy of a sponge

Answer 33

Digest/move food move oxygen carry wast and make spicules and spongin.

Question 34

When does a sponge produce genmules

Answer 34

During inclement time

Question 35

What is the difference between nematocyst of a hydra and those of a sea anemone

Answer 35

The hydra are triggered by pressure the sea anemone are triggered by chemicals

Question 36

Why do Cnidarians Not need respiratory or excretory system

Answer 36

Their bodies than enough for the cells to do it

Question 37

Some Biology books say that jellyfish live “dual lives “ Why?

Answer 37

Because they start out as a polyp and then form medusas

Question 38

If a jellyfish reproduces sexually, what form is it in

Answer 38

Medusa

Question 39

What is another name for a large coral colony

Answer 39

A coral reef

Question 40

What benefits do earthworms give to the plant in the soil they inhabit

Answer 40

Earthworms recycling dirt by mixing the top and the bottom layers and the earthworm tunnels allow oxygen to get to the root of the plant easily

Question 41

If you pick up two Earthworms and the first feels very slimy near the clitellum and the second does not, what can you conclude about the first Earthworm?

Answer 41

It has recently mated

Question 42

What similarities exist between the hydros sexual reproduction and the earthworms? What are the differences

Answer 42

Both are hermaphroditic The hydra can asexually reproduce whereas the earthworm cannot

Question 43

What will happen to an earthworm if it cuticle gets dry

Answer 43

It will suffocate

Question 44

Why don’t planarians need circulatory systems

Answer 44

Because the intestines are long enough and the cells are close enough to just pass that way

Question 45

If a flatworm has no complex nervous or digestive systems, is it most likely free living or parasitic

Answer 45

Parasitic

Question 46

What is the main mode of asexual reproduction in a planarian

Answer 46

Regeneration

Question 47

What phylum is the sea anemone

Answer 47

Cnidaria

Question 48

What phylum is the clam in

Answer 48

Mollusca

Question 49

What Phylum is the sponge in

Answer 49

Porifera

Question 50

What phylum is the flatworm in

Answer 50

Platyhelminthes

Question 51

What phylum is the segmented worms in

Answer 51

Annelida