phylum cnidaria

Question 1

poison filled stinging structure

Answer 1

nematocyst

Question 2

jellyfishes, sea anemones, and coral

Answer 2

Cnidaria

Question 3

the layer found between epidermis and gastroderm

Answer 3

mesoglea

Question 4

inner lining of gastrovascular cavity

Answer 4

gastroderm

Question 5

organisms that lack a back bone

Answer 5

invertebrate

Question 6

Immobile

Answer 6

Sessile

Question 7

Mode of locomotion for Medusa’s

Answer 7

Jetpropulsion

Question 8

Hydras

Answer 8

Class hydrozoa

Question 9

Long flexible appendage

Answer 9

Tentacle

Question 10

Many connected individuals living and working together

Answer 10

Colony

Question 11

Jellyfishes

Answer 11

Class scyphozoa

Question 12

Colony of coral

Answer 12

Great Barrier Reef

Question 13

Colonial hydra

Answer 13

Portuguese man of war

Question 14

Outside the cell

Answer 14

Extracellular

Question 15

Stinging cells

Answer 15

Cnidocytes

Question 16

Outer layer of cells

Answer 16

Epidermis

Question 17

Digestive chamber

Answer 17

Gastrovascular cavity

Question 18

Zygote formation in the open water

Answer 18

External fertilization

Question 19

Body plan w equal halves when bisected through the centre

Answer 19

Radial symmetry

Question 20

Circular and longitudinal muscles along with water to facilitate movement

Answer 20

Hydro static skeleton

Question 21

Loose organization of nerve cells for stimuli detection

Answer 21

Nerve net

Question 22

Corals and sea anemones

Answer 22

Class anthozoa

Question 23

Cells for detecting gravity

Answer 23

Statocyst

Question 24

Eyespots

Answer 24

Ocelli