animal nutrition

Question 1

suspension feeders

Answer 1

sift small food particles from the water; such as baleen in whales

Question 2

substrate feeders

Answer 2

animals that live in or on their food source

Question 3

fluid feeders

Answer 3

suck nutrient fluid from a living host

Question 4

bulk feeders

Answer 4

most animals; eat relatively large pieces of food

Question 5

crop

Answer 5

stores and moistens food; found in earthworm, grasshopper, bird

Question 6

gizzard

Answer 6

contains small bits of sand gravel that pulverizes food

Question 7

gastric ceca

Answer 7

pouches extending from midgut in grasshopper; absorbs nutrients like the intestine does

Question 8

alimentary canal

Answer 8

complete digestive tract with digestive tube extending between two openings with mouth and anus

Question 9

peristalsis

Answer 9

rhythmic waves of contraction by smooth muscles in walls of alimentary canal

Question 10

salivary amylase

Answer 10

enzyme in saliva that hydrolyzes starch and glycogen

Question 11

pharynx

Answer 11

junction that opens to both the esophagus and the trachea

Question 12

pepsin

Answer 12

enzyme in the stomach that begins the hydrolysis of proteins

Question 13

pepsinogen

Answer 13

inactive form of pepsin secreted by chief cells in gastric pits

Question 14

parietal cells

Answer 14

in gastric pits; secretes hydrochloric acid

Question 15

pyloric sphincter

Answer 15

helps regulate the passage of chyme into the small intestine from the stomach

Question 16

duodenum

Answer 16

beginning of small intestine; digestive juices from pancreas, liver, gall bladder

Question 17

bile

Answer 17

produced by the liver; stored in the gall bladder

Question 18

herbivore cecum

Answer 18

functions as fermentation chamber for bacteria to digest leaves

Question 19

ruminant

Answer 19

stomach has four chambers; rumen, reticulum, omasum, abomasum