Midterm 4

Question 1

What are the unique features of the shark’s digestive system?

Answer 1

• U-shaped stomach
• stomach pH is really low
• Spiral hindgut

Question 2

Do sharks regurgitate undigestible material?

Answer 2

yes

Question 3

Do crocodiles regurgitate undigestible material?

Answer 3

no

Question 4

Are there herbivorous turtles?

Answer 4

yes

Question 5

What is unique about whales and dolphin?

Answer 5

multi-chambered stomach, foregut fermentation, can digest chytin

Question 6

What’s unique about fish digestive system?

Answer 6

• short digestive system
• pharyngeal teeth
• some have secretory gland gizzards

Question 7

Name one avian species that doesn’t have a true gizzard?

Answer 7

sage grouse

Question 8

Name two omnivorous avian species

Answer 8

turkey, california gull

Question 9

Name an avian species that is a hindgut fermenter that practices coprophagy

Answer 9

ptarmigan

Question 10

name an avian species that is a fore- and hindugt fermenter

Answer 10

Hoatzin

Question 11

Unique features of avian digestive tract

Answer 11

crop, gizzard, proventriculus, ceca

Question 12

Know the diagram of the different digestive strategeies

Answer 12

yessir

Question 13

Turtles are ____ as young and ___ as adults

Answer 13

carnivores, herbivores

Question 14

How do snakes capture their prey?

Answer 14

disarticulating jaw and backward facing teeth

Question 15

do egg-eating snakes digest egg shells?

Answer 15

no, they regurgitate them

Question 16

in the fish, reptile and avian species, where are nutrients absorbed?

Answer 16

in the small intestine

Question 17

What’s the deal with brine shrimp?

Answer 17

cists harvested and raised for fish food

Question 18

Do you want fish food to float, sink or disintegrate?

Answer 18

Not disintegrate

Question 19

What do you have to supplement captured reptiles with?

Answer 19

Calcium, vitamin D

Question 20

If you overfeed protein what happens to the amino acids?

Answer 20

deamination and the production of ammonia, can cause toxicity

Question 21

Do hawks regurgitate?

Answer 21

Yes, a bolus like owls

Question 22

Name some classes of faunivores

Answer 22

insectivore, carnivore, piscivore, crustaceavore

Question 23

name some classes of florivores

Answer 23

frugivores, granivores, nectivores

Question 24

nectivore vs granivore

Answer 24

nectivore feeds in short bursts then rests, digestion is much faster, and must eat insects for fat and protein

Question 25

what does facultative mean?

Answer 25

may change depending on what’s available

Question 26

What’s the difference between a facultative granivore and an omnivore?

Answer 26

facultative granivore would eat grain year-round if available, an omnivore is omnivorous year-round

Question 27

two species that are more carnivorous when young?

Answer 27

turkey and turtle

Question 28

What are some differences between growing animals, gender?

Answer 28

some species, diet depends on gender, may also depend on whether animals are growing or not