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Biology Q#3 > 2919 Mod11 > Flashcards

2919 Mod11 Flashcards

1
Q

Invertebrates

A

Animals that lack a back bone

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2
Q

Vertebrates

A

Animals that possess a backbone

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3
Q

Spherical symmetry

A

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

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4
Q

Radial symmetry

A

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

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5
Q

Bilateral symmetry

A

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

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6
Q

Epidermis

A

An outer layer of cells designed to provide protection

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7
Q

mesenchyme

A

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

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8
Q

Collar cells

A

flagellated Cells that push water through a sponge

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9
Q

Amoebocytes

A

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

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10
Q

Gemmule

A

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

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11
Q

Polyp

A

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

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12
Q

Medusa

A

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

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13
Q

Epithelium

A

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

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14
Q

Mesoglea

A

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

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15
Q

Nematocyst

A

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

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16
Q

Anterior end

A

The end of an animal that contains its head

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17
Q

Posterior end

A

The end of an animal that contains its tail

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18
Q

Circulatory system

A

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

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19
Q

Nervis system

A

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

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20
Q

Ganglia

A

Masses of nerve cell bodies

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21
Q

Hermaphroditic

A

Possessing both the male and female reproductive organs

22
Q

Mantle

A

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

23
Q

Shell

A

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

24
Q

Visceral hump

A

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

25
Q

Foot

A

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

26
Q

Radula

A

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

27
Q

Univalve

A

And organism with a simple shell

28
Q

Bivalve

A

An organism with two shells

29
Q

Do the vast majority of animals have backbones?

A

No

30
Q

How do you sponges get their prey

A

By pumping water through their bodies

31
Q

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

A

Spongin

support the sponge

32
Q

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

A

Budding

33
Q

What roles do amoebocytes play in the anatomy of a sponge

A

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

34
Q

When does a sponge produce genmules

A

During inclement time

35
Q

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

A

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

36
Q

Why do Cnidarians Not need respiratory or excretory system

A

Their bodies than enough for the cells to do it

37
Q

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

A

Because they start out as a polyp and then form medusas

38
Q

If a jellyfish reproduces sexually, what form is it in

A

Medusa

39
Q

What is another name for a large coral colony

A

A coral reef

40
Q

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

A

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

41
Q

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?

A

It has recently mated

42
Q

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

A

Both are hermaphroditic

The hydra can asexually reproduce whereas the earthworm cannot

43
Q

What will happen to an earthworm if it cuticle gets dry

A

It will suffocate

44
Q

Why don’t planarians need circulatory systems

A

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

45
Q

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

A

Parasitic

46
Q

What is the main mode of asexual reproduction in a planarian

A

Regeneration

47
Q

What phylum is the sea anemone

A

Cnidaria

48
Q

What phylum is the clam in

A

Mollusca

49
Q

What Phylum is the sponge in

A

Porifera

50
Q

What phylum is the flatworm in

A

Platyhelminthes

51
Q

What phylum is the segmented worms in

A

Annelida

Biology Q#3 (4 decks)

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