Animals Flashcards

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1
Q

Bilateral symmetry

A

Anything with a head, or if cut in half, both sides would be same.

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2
Q

Radial symmetry

A

All parts radiate out from central point and are same

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3
Q

Asymmetrical

A

If you don’t know this I can’t help you

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4
Q

Open circulatory system

A

Blood just kinda flows wherever like sponge, slow

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5
Q

Closed circulatory system

A

Blood is always inside vessels, fast

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6
Q

Vertebrate

A

Has backbone, only 5% of all animals, phylum Chordata

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7
Q

Invertebrate

A

Doesn’t have backbone, 95% of animals on earth

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8
Q

Cephalization

A

Having a head, with sense organs and nerves

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9
Q

Exoskeleton

A

Skeleton is on outside

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10
Q

Endoskeleton

A

Skeleton is on inside

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11
Q

Animals with Fluid-filled body cavity

A

Earthworms and roundworms

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12
Q

Biodiversity

A

The huge variety of organisms on this planet

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13
Q

Freshwater habitat

A

Puddles, ponds, streams, rivers, lakes, inland marshes

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14
Q

Marine habitat

A

Salt water - ocean

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15
Q

Brackish habitat

A

Animals live in are where fresh and salt water meet - like an estuary

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16
Q

Terrestrial habitat

A

Land

17
Q

Anterior

A

Head

18
Q

Posterior

A

Rear

19
Q

Dorsal

A

Back

20
Q

Ventral

A

Stomach

21
Q

Autotrophs

A

Makes own food / energy

22
Q

Heterotrophs

A

Must consume other things for food / energy

23
Q

Breathing mechanisms

A

Gills, lungs, skin, trachea/ spiracles

24
Q

Incomplete metamorphosis

A

Egg, nymph (naiad if aquatic), adult

25
Q

Complete metamorphosis

A

Egg, larva, pupa, adult

26
Q

Chrysalis

A

Pupa of butterfly

27
Q

Cocoon

A

Pupa of moth

28
Q

Coelom

A

Body cavity

29
Q

Ectoderm

A

Sense organs, nerves, skin

30
Q

Mesoderm

A

Muscles, circulatory, reproductive, and excretory organs

31
Q

Endoderm

A

Linings of digestive tract, much of respiratory system

32
Q

Blastopore

A

First hole thingy that develops in the embryonic stage

33
Q

Protosomes

A

Blastopore becomes mouth (most invertebrates)

34
Q

Deuterosomes

A

Blastopore becomes anus (Echinoderms and chordates)

35
Q

4 characteristic all chordates

A

Notochord
Dorsal, hollow nerve chord
Pharyngeal slits
Tail that extends beyond anus

36
Q

6 Characteristics of vertebrates

A
Vertebrae
Cranium
Endoskeleton
Cartilage and hard bone
Tetrapods- 4 legs
Hinged lower jaw