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Biology 2 > Ch. 33 > Flashcards

Ch. 33 Flashcards

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1
Q

What are multicellular heterotrophs with mobility and sexual reproduction?

A

Animals

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2
Q

What is unique about animal chracteristics?

A

-No cell walls
-Extracellullar matrix
-Cell junctions for communication

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3
Q

What type of feeding involves the filtering of particles from surrounding water?

A

Suspension feeding

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4
Q

What type of feeding involves eating large food pieces?

A

Bulk feeding

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5
Q

What type of feeding involves sucking sap or animal body fluids?

A

Fluid feeding

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6
Q

What tissues are unique to animals?

A

Muscle and nervous

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7
Q

Most animals are capable of some kind of ______

A

Locomotion

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8
Q

What coordinates animal movement?

A

Nervous system

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9
Q

Nearly all animals reproduce ______

A

Sexually

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10
Q

What type of fertilization is common in terrestrial species?

A

Internal fertilization

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11
Q

What type of fertilization is common in aquatic species?

A

External fertilization

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12
Q

What is the developmental phenomenon in which animal changes from a juvenile to an adult form?

A

Metamorphosis

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13
Q

Most biologists classify the animal kingdom as a _______ group

A

Monophyletic

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14
Q

How many animal phyla are there?

A

35

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15
Q

What are different types of tissue between external and internal layers called?

A

Germ layers

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16
Q

What is the closest living relative of all animals?

A

Choanoflagellates

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17
Q

Choanoflagellates are similar to

A

Choanocytes on sponges

18
Q

Choanoflagellates have a _______ flagellum surrounded by a collar of cytoplasmic tentacles

A

Single

19
Q

The traditional classifications based on body plans are?

A

-Body symmetry
-Number of germ layers
-specific features of embryonic development
*molecular data

20
Q

Eumetazoa is divided by

A

Symmetry

21
Q

Radiata has what kind of symmetry?

A

Radial

22
Q

Which symmetry often displays a circular or tubular shape with a mouth at one end?

A

Radial

23
Q

Bilateria has what kind of symmetry?

A

Bilateral

24
Q

What symmetry has chephalization (dorsal and ventral sides) and anterior and posterior ends?

A

Bilateria

25
Q

Radiata have how many germ layers?

A

Diploblastic (2)

26
Q

Bilateria have how many germ layers?

A

Triploblastic (3)

27
Q

When do cellular layers develop?

A

Gastrulation

28
Q

What is the 3rd germ layer in bilateral animals?

A

Mesoderm

29
Q

The mesoderm forms what in bilateral animals?

A

Muscles and most organs

30
Q

What is has a blastopore becomes a mouth, cleavage is determinant, and has spiral cleavage?

A

Protostome

31
Q

What has a blastopore that becomes an anus, cleavage is indeterminate, and radial cleavage?

A

Deuterostome

32
Q

What is body segmentation called?

A

Coelom

33
Q

What is a coelom?

A

Fluid filled cavity

34
Q

What body cavity is completely lined with mesoderm?

A

Coelmate

35
Q

What body cavity is partially lined with mesoderm?

A

Pseudocoelomate

36
Q

What organisms lack a body cavity and have a mesenchyme?

A

Acoelomate

37
Q

What are the functions of a coelom?

A

-cushions internal organs
-hydrostatic skeleton: fluid pushes from one part of the body to the other acting as contractions
-fluid acts as a simple circulatory system

38
Q

What organisms molt and shed an exoskeleton that must be regrown?

A

Ecydszoa

39
Q

What organisms having feeding tentacles (lophophores) and a band of cilia for swimming (trochophore larva)

A

Lophotrochozoa

40
Q

Who is included in ecydysozoa?

A

Nematodes and arthropods

41
Q

Who is included in lophotrochozoa?

A

Mollusks and annelids

Biology 2 (9 decks)

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