Phylum -Coelenterates Flashcards

1
Q

Coelenterates live in which type of water?

A

Marine forms

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2
Q

Movement of coelenterates?

A

Sessile/free swimming

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3
Q

Coelenterates are also known as?

A

Cnidaria

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4
Q

Cnidaria name is derived from?

A

Cnidoblasts or cnidocytes

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5
Q

Cnidoblasts or cnidocytes are present on?

A

Tentacles and the body

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6
Q

Cnidoblasts are used For

A

Anchorage
Defence
Capture of prey

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7
Q

Mouth is present on?

A

Hypostome

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8
Q

Digestion in coelenterates is

A

Both intracellular and extracellular

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9
Q

Corals skeleton is made of

A

Calcium carbonate

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10
Q

basic body form of coelenterates are?

A

Polyp
Medusa

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11
Q

Movement of polyp is

A

Sessile

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12
Q

Polyp example?

A

Hydra,adamsia

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13
Q

Medusa is

A

Free swimming and umbrella shaped

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14
Q

Medusa example

A

Aurelia or jellyfish

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15
Q

What is metagenesis?

A

Cnidarians which exist in both polyp and Medusa forms exhibit alternation of generation

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16
Q

Polyp becomes Medusa by which type of reproduction?

A

Asexually

17
Q

Medusa becomes polyp by which type of reproduction?

A

Sexually

18
Q

Metagenesis example(1)

A

Obelia

19
Q

Examples of coelenterates(5)

A

Physalia(Portuguese man of war)
Adamsia(sea anemone)
Pennatula(sea pen)
Gorgonia(sea fan)
Meandrina(brain coral)