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Flashcards in chapter 13 Deck (15)
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1
Q

peristalsis?

A

the rythmic, wavelike contraction of muscle

2
Q

hemoglobin

A

a pigment that combines with oxygen

3
Q

nephridia?

A

open ended tubules that function in excretion

4
Q

clitellum?

A

a smooth and enlarged segment found about one-third of the way along the body of oligochaetes

5
Q

dorsal?

A

the upper side or back of an animal,plant,or organ

6
Q

ventral?

A

the underside of an animal or plant

7
Q

anterior?

A

near the front (head)

8
Q

posterior?

A

near the rear(butt)

9
Q

malpighian tubules?

A

tubelike structures that are involved in excretion

10
Q

photoreceptors

A

sensory receptors that detect light energy

11
Q

hemocoel

A

an open space or body cavity

12
Q

tracheal system

A

a branching series of tubes that conducts air to the cells of insects

13
Q

incomplete vs complete metamorphosis

A

incomplete=egg,nymph,
adult

complete= egg,larvae,pupa,adult

14
Q

how does the vascular system work?

A

like a hydraulic pressure system

15
Q

what are mesentaries?

A

loose connective tissue that suspend the internal organs in their proper position