Zoology exam 4 Study guide (2)

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1

mention 3 characteristics of the Appendages of the subphylum crustacea.

  1. They have one for swimming
  2. They have one for walking
  3. They have Biramous Appendages
2

The antennal gland is also known as what?

The green gland

3

Where is the Antennal gland located?

At the base of the antenna

4

The Antennal gland has no _________________.

Sensation

5

Describe the Antennal gland?

  • It is also known as a green gland
  • It is located at the base of the antenna
  • It has no sensation
6

What is the primary role of the Antennal gland?

Osmoregulation

7

Where is fluid stored in crustaceans?

In the bladder

8

In Crustaceans, How is fluid excreted?

Via the Nephridiophore

9

In Chelicerates, How is fluid excreted?

Malpighian tubules

10

A gizzard in decapod crustaceans, as lobsters, crabs, and shrimps, having an arrangement of teeth and small bones for grinding food and bristles for filtering small particles.

Gastric Mill

11

What type of Stomach do Crustaceans have?

A large stomach

12

In Crustaceans, What is the gastrolith used for?

grinding food

13

In Crustaceans, Where does the gastric mill pass food into?

The small intestine

14

During molting, what do crustaceans secrete?

New Cuticle

15

During molting, What do crustaceans dissolve?

Old Cuticles

16

During molting, what happens to the blood volume of Crustaceans?

It Increases

17

Describe the molting process of a crustacean.

  • They secrete new cuticle
  • Enzymes dissolve old cuticles
  • Blood Volume increases
18

Describe the Life Cycle of a Crustacean.

card image

1. Egg

2. Naupilus

3. Protozoae

4. Mysis

5. Post Larval Stage

6. Adult

19

What are some triggers of molting in crustaceans?

  • Temperature
  • Day length
  • Humidity
20

What produces the inhibiting hormone of molting in crustaceans?

X-Organ

21

What produces the molting hormone in crustaceans?

Y-Organ

22

What happens to the inhibiting hormone during the molting process of Crustaceans?

Its levels drop.

23

What happens to the molting hormone during the molting process of Crustaceans?

More are produced.

24

In Hexapods, what is used for Absorption during digestion?

Midgut

25

In Hexapods, what is used for grinding during digestion?

Proventiculous

26

How many pairs of wings does the Subphylum Hexapoda have?

2

27

How many Tagmata does the Subphylum Hexapoda have?

3

28

What does the Tagmata of the subphylum Haxapoda consist of?

  • Head
  • Thorax
  • Abdomen
29

How many legs do Hexapods have?

6

30

Which subphyla are uniramous?

Myriapoda and Hexapoda

31

Describe the Appendages of the subphylum Hexapoda.

  • They have 6 legs
  • They are Uniramous
  • They have 3 pairs of legs
  • They have 2 pairs of wings
  • They have 3 tagmata
32

Name the two classes of the Subphylum Hexapoda.

  • Enterognatha
  • Insecta
33

How many species are within the class insecta?

1 million

34

Describe the mouthparts of the class insecta.

It is Ectognathous (mouth outside of head)

35

In Hexapods, what is used for storage?

A Crop

36

In Hexapods, what is used for grinding?

Proventiculous

37

In Hexapods, what is used for Absorption?

Midgut

38

Describe the Digestive system of the class Hexapoda.

  • Crop=Storage
  • Proventriculous=Grinding
  • Midgut=Absorption
39

Which subphyla use Malpighian Tubules for Osmoregulation?

Chelicerata and Hexapoda

40

In Hexapods, what is used for storage of food?

A Crop

41

Which Subphyla of the Phylum Anthropoda has an Open Circulatory system?

All of them

42

How do Hexapods under go circulation?

card image

The heart pumps hemolymph out into the body cavity, shaded in pink, where it can directly bathe the tissues and provide nutrients and oxygen to them without the use of blood vessel.

  • It has an open circulatory system.
43

Which Subphyla uses Body Surface or Tracheae to respire?

Myriapoda

44

Which Subphyla uses Book lungs or Tracheae to respire?

Chelicerata

45

How do Hexapods respire?

Via a Tracheal System (Oxygen directly to each cell).

46

What does a tracheal system of Hexapod consist of?

Spiracles

Taenidia

Trachioles wrapping around every single cell

47

openings on the surface of Hexapods, which usually leads to respiratory systems.

Spiracles

48

What is the role of Taenidia in the Tracheal system in Hexapods?

They provide support

49

What Kind of development can Hexapods undergo?

  • Direct development
  • incomplete Metamorphosis
  • Complete Metamorphosis
50

Organisms with Direct development are know as what?

Ametabolous.

51

Organisms with Incomplete metamorphosis are known as...

Hemimetabolous

52

Organisms that undergo Complete Metamorphosis are know as....

Holometabolous (Butterfly)

53

Ecdysone is known as what?

The Molting Hormone

54

The Molting hormone of Hexapods is know as..

Ecdysone

55

Juvenile Hormones sustain what?

Larval Molting

56

Larval Molting is sustained by which hormones?

Juvenile Hormones.

57

The stage between molts in Hexapods is called..

Instar

58

In hexapods, 'Instar' is known as.....

The stage between molts

59

The delay in development in response to regularly and recurring periods of adverse environmental conditions.

Diapause