Test week 6

Question 1

What is the structure in the frogskin there produce color?

Answer 1

Cromatophores, with reflective pigments and meleanin below.

Question 2

Which of the following are characteristics of ALL crown-group animals

Answer 2

They dont ALL have external ears and teeth

Question 3

All modern mammals are …

Answer 3

Synapsids

Question 4

Match the amphibian group with the principal form of reproductive strategy?

Answer 4

Frogs and toads: external

Salamnaders and caecilians: internal

Most of the spicies are oviparous, but some can be the two other things.

Question 5

Which of the following characteristics were determined by the evolution of their small, nocturnal ancestors.

Answer 5

Why is the amphibian circulation less effective compared to mammals.

Question 6

Which of these skull types are most associated with the evolution of mammals

Answer 6

The one with one hole

Question 7

Match each term with is the best explanation

Paedormorphis
progenesis
neotony
Histotrophic viviparity
Haemotrophic viviparity

Answer 7

when some of the young things, is preserved when they get old.
fast genitels, normal body growth
normal genitals, but slow body growth
The young eat their siblings
The young eat their mothers egg

Question 8

In the transition from water to land, which is the advantages for verterbrates with stronger legs

Answer 8

Breathing
lifting it up
able to eat from a new enviroment

Question 9

Why works the amphibian heart worse then mammals

Answer 9

3 chambers, where humans have 4. This means that some of the oxygenated and deoxygenated blood is

1 ventricle

2 arteria