Phylum Cnidaria

Question 1

Cnidaria examples

Answer 1

Anemones, jellies, coral

Question 2

Cnidaria germ layers?

Answer 2

Diploblastic

Question 3

Cnidaria ectoderm is

Answer 3

Epidermis

Question 4

Cnidaria Endoderm

Answer 4

Gastrodermis

Question 5

What is between the Cnidaria ectoderm and Endoderm?

Answer 5

Mesoglea

Question 6

Parts of Cnidaria

Incomplete digestive tract path

Answer 6

mouth -> pharynx -> gastrovascular cavity

Question 7

Cnidaria feeding mechanism

Answer 7

Filter/suspension feeding

Question 8

How do Cnidaria breathe and excrete?

Answer 8

Every cell has access to water to do its own gas exchange and diffusion of metabolic waste

Question 9

Where does Cnidaria keep water for hydrostatic skeleton

Answer 9

Water kept in the gastrovascular cavity

Question 10

Cnidaria symmetry type

Answer 10

Radial symmetry

Question 11

Cnidaria “No brain, no ganglion”

Answer 11

Cnidaria have a nerve network

Question 12

Cnidaria synapomorphy

Answer 12

Cnidocytes

Question 13

Cnidocyte purpose

Answer 13

Feeding and protection

Question 14

Cnidocil purpose

Answer 14

trigger

Question 15

Nematocyst

Answer 15

stinger (neurotoxins)

Question 16

Cnidaria Barbs purpose

Answer 16

prevent prey from escaping

Question 17

Cnidaria Filament purpose

Answer 17

delivers toxin

Question 18

Cnidaria budding

Answer 18

offspring is developed

grows on parent and “hops off”

Question 19

Cnidaria fragmentation

Answer 19

Piece breaks off and regenerates the rest of the body

Question 20

Cnidaria

solitary or colony

Answer 20

Both, either / or

Question 21

Cnidaria are commonly mutualistic with ____

Answer 21

Zooxanthella

Question 22

2 Cnidaria body forms?

Answer 22

Polyp and medusa

Question 23

3 Cnidaria polyp characteristics

Answer 23

Sedentary
Thin mesoglea
tentacles “up”

Question 24

3 Cnidaria medusa characteristics

Answer 24

swimming
thick mesoglea
tentacles “down”

Question 25

Class Hydrozoa common name

Answer 25

Hydras

Question 26

Epidermal gonads | Colonial or solitary

Answer 26

Class Hydrozoa characteristics

Question 27

Sea anemones and corals

Answer 27

Class Anthozoa

Question 28

"antho" means | "zoa" means

Answer 28

flower; animal

Question 29

Dividers in Anthozoa gastrovascular cavity: Septa are designed to

Answer 29

increase surface area of gastrodermis

Question 30

Anthozoa gonads are generated from ___

Answer 30

gastrodermis

Question 31

Anthozoa synapomorphy

Answer 31

Medusa is absent from entire class

Question 32

Class Scyphozoa common name

Answer 32

Jellies

Question 33

Scyphozoa life cycle

Answer 33

zygote -> planula (settles) -> scyphistoma -> strobila -(asexual reproduction)-> ephyra (from budding) -> adult medusa

Question 34

Cnidaria digestive tract type?

Answer 34

Incomplete digestive tract

Question 35

Cnidaria nervous system type?

Answer 35

Nerve network

Question 36

Cnidaria respiratory and excretory systems?

Answer 36

No specialized respiratory structures | No specialized excretory structures