ANIMAL NUTRITION AND DIGESTIVE SYSTEM 2

Question 1

is found in organisms with only one opening for digestion

Answer 1

gastrovascular cavity
ex. flatworms, comb jellies, coral, jelly fish, and sea anemones)

Question 2

is a more advanced system: it consists of one tube with a mouth at one end and an anus at the other.

Answer 2

alimentary canal

Question 2

________ are an example of an animal with an alimentary canal.

Answer 2

Earthworms

Question 3

have evolved more complex digestive systems to adapt to their dietary needs

Answer 3

Vertebrates

Question 4

this type of digestive system consists of one stomach chamber

Answer 4

monogastric

Question 5

a long tube that connects the mouth to the stomach.

Answer 5

esophagus

Question 6

the stomach is an extremely acidic environment, with a pH between

Answer 6

1.5 and 2.5

Question 7

The stomach of birds has two chambers

Answer 7

the proventriculus and the gizzard

Question 8

where gastric juices are produced to digest the food before it enters the stomach

Answer 8

the proventriculus

Question 9

where the food is stored, soaked, and mechanically ground

Answer 9

the gizzard

Question 10

are mainly herbivores like cows, sheep, and goats, whose entire diet consists of eating large amounts of roughage or fiber.

Answer 10

Ruminants

Question 11

The four compartments of the stomach are called

Answer 11

the rumen, reticulum, omasum, and abomasum

Question 12

the “true” stomach and is the equivalent of the monogastric stomach chamber where gastric juices are secreted.

Answer 12

abomasum

Question 13

contain prokaryotes and protists that are able to digest cellulose fiber

Answer 13

the rumen and the reticulum

Question 14

The ruminant regurgitates cud from the

Answer 14

reticulum

Question 15

chews it, and swallows it into a third stomach, which removes water

Answer 15

the omasum

Question 16

where it is digested by enzymes produced by the ruminant.

Answer 16

the abomasum

Question 17

The digestive enzymes of these animals cannot breakdown cellulose, but microorganisms present in the digestive system can.

Answer 17

Pseudo-ruminants

Question 18

These animals do not have a rumen but have an omasum, abomasum, and reticulum.

Answer 18

Pseudo-ruminants