Last weeks test

Question 1

Mammals have sweat glands. What other substances do modified sweat glands produce in modern mammals?

Answer 1

Milk

Apocrine sweat glands produce thicker liquid for signaling related to reproduction

Question 2

For marsupial mammals, provide the correct response for each question.

Pregunta
How many molars for they have?

How many branches does a penis have?

How many vaginas does a female have?

Answer 2

4 molars

2 branches

3 holes

Question 3

What is the main function of the “beak” in a platypus?

Answer 3

Electrolocation

Question 4

Where did marsupial mammals originate?

Answer 4

North Americ

Question 5

Which of the following is true of extant monotremes?

Answer 5

The placenta develops in different places and in a short time compared to placental mammals

They lay eggs

One hole

Endothermic whit high metabolic rate (but much lower than other mammals)

Lack of teeth

Electrolocation

Interesting mixture of reptiles and mammals.