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Biology > Module #12 Review Questions > Flashcards

Module #12 Review Questions Flashcards

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1
Q

Name the five characteristics that arthropods have in common.

A
  1. An Exoskeleton
  2. Body segmentation
  3. Jointed appendages
  4. Ventral nervous system
  5. Open circulatory system
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2
Q

Because they have an exoskeleton, arthropods must do what in order to grow?

A

Molt

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3
Q

An arthropod’s body might consist of what three segments?

A

The head, the thorax, the abdomen

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4
Q

An arthropod’s body might consist of what two segments?

A

The cephalothorax and the abdomen

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5
Q

The eye that consists of one lens is called what?

A

Simple

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6
Q

An eye consisting of many lenses is called what?

A

Complex

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7
Q

What class of phylum Arthropoda does the crayfish belong to?

A

Crustacea

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8
Q

From where does the crayfish get its sense of balance?

A

Its antennules

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9
Q

From where does a crayfish get its sensitive senses of taste and touch?

A

Its antennae

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10
Q

What are the crayfish’s claws called?

A

Its chelipeds

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11
Q

What two items on the crayfish posterior end are used for swimming?

A

The uropod and telson

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12
Q

On the crayfish what is used for swimming and reproduction?

A

The swimmerets

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13
Q

A crayfish gets oxygen that has been dissolved in the water by passing water over what?

A

It’s gills

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14
Q

In what cavity does the crayfish’s blood collect?

A

The pericardial sinus

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15
Q

In the crayfish, what main organ rest in the pericardial sinus?

A

The heart

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16
Q

In the crayfish’s heart, each opening has a valve that does what when the heart is ready to pump?

A

Closes

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17
Q

In an open circulatory system, the heart pumps the blood into blood vessels. These blood vessels have what characteristic?

A

They are opened at either end

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18
Q

In an open circulatory system, where do the blood vessels dump the blood?

A

Into the various body cavities

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19
Q

Gravity causes the blood to fall into the what, where it is collected by blood vessels that are open at one end.

A

The sternal sinus

20
Q

After the blood is dumped in the sternal sinus, the blood vessels carry the blood back to what area?

A

The pericardial sinus

21
Q

On the way back to the pericardial sinus the blood passes through the gills where it can release what and absorb what?

A

Carbon dioxide and oxygen

22
Q

In a crayfish the blood is cleaned by what?

A

The green gland

23
Q

The crayfish breaks its food into small chunks using what?

A

Its mandibles

24
Q

After breaking down the food with it’s mandibles, the food enters a short what?

A

Esophagus

25
Q

After breaking down the food with it’s mandibles, the food enters a short what?

A

The stomach

26
Q

The crayfish’s stomach has two regions. The first region does what?

A

Grinds the food into fine particles

27
Q

The crayfish’s stomach has two regions. The second region does what?

A

Sorts the particles

28
Q

In the second region of the crayfish’s stomach, if the particles are small enough they are sent where?

A

Digestive glands

29
Q

In the second region of the crayfish’s stomach, if the particles are too large they are sent where?

A

To the intestine

30
Q

In the crayfish’s digestive system, what happens to anything that remains at the end of the intestine?

A

It is expelled out the anus

31
Q

The crayfish’s brain is comprised of two what?

A

Ganglia each having a nerve cord attached

32
Q

What is t the base of the antennules, which gives the crayfish its sense of balance?

A

Statocyst

33
Q

Spiders are in what class?

A

Arachnida

34
Q

Class arachnida have five common characteristics. Name them.

A
  1. 4 pairs of walking legs,
  2. A cephalothorax,
  3. 4 pairs of simple eyes,
  4. No antennae
  5. Respiration done through book lungs.
35
Q

Spiders spin webs made of silk that is produced in what?

A

The silk glands

36
Q

With what does the spider use to spin a web?

A

The spinnerets

37
Q

Centipedes are aggressive predators with how many legs per segment?

A

Two

38
Q

Millipedes are docile herbivores with how many legs per segment?

A

Four

39
Q

Members of class insecta have four characteristics in common. Name them.

A
  1. Three pairs of walking legs
  2. Wings at some stage of their life
  3. One pair of antennae
  4. Three body segments
40
Q

Insects breathe through what?

A

Tracheas

41
Q

Complete metamorphosis has what four stages?

A

Egg, larva, pupa, and adult

42
Q

Incomplete metamorphosis has what three stages?

A

Egg, nymph and adult

43
Q

Butterflies and moths belong to what order?

A

Lepidoptera

44
Q

Ants, bees, and wasps belong in what order?

A

Hymenoptera

45
Q

Beetles belong to what order?

A

Coleoptera

46
Q

Flies, gnats and mosquitoes belong to what order?

A

Diptera

47
Q

Grasshoppers and crickets belong in what order?

A

Orthoptera

Biology (24 decks)

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