2.2.1 Animal organs

Question 1

What happens during the development of multicellular organisms?

Answer 1

During the development
of a multicellular organism, cells differentiate so
that they can perform different functions.

Question 2

What does muscular tissue do?

Answer 2

Muscular tissue, which can contract to bring

about movement

Question 3

What can glandular tissue do?

Answer 3

glandular tissue, which can produce substances

such as enzymes and hormones.

Question 4

What tissues does the stomach contain and what are their uses?

Answer 4

■ muscular tissue, to churn the contents
■ glandular tissue, to produce digestive juices
■ epithelial tissue, to cover the outside and the
inside of the stomach

Question 5

What does the digestive system include and what does it do?

Answer 5

■ glands, such as the pancreas and salivary
glands, which produce digestive juices
■ the stomach and small intestine, where digestion
occurs
■ the liver, which produces bile
■ the small intestine, where the absorption of
soluble food occurs
■ the large intestine, where water is absorbed from
the undigested food, producing faeces.