chapter 4

Question 1

Mass Extinctions

Answer 1

there are 5 mass extinctions, only need to know 2

Question 2

Permian extinction

Answer 2

: enormous volcanic eruptions caused lots of marine animals to go bye bye

Question 3

Cretaceous extinction

Answer 3

Dinosaurs (other than birds) went extinct perhaps asteroid

Question 4

• Mass extinctions are often followed by _

Answer 4

explosive increase in diversity

Question 5

What happened after dinosaur
extinctions

Answer 5

An adaptive radiation (rapid speciation) of mammals

Question 6

what is adaptive radiation

Answer 6

. Adaptive radiation is a rapid increase in the number of species with a common ancestor, characterized by great ecological and morphological diversity.

Question 7

what is Taxonomy

Answer 7

Name & Classification of
Species
Each species is placed into a
hierarchical classification

Question 8

Monophyletic group

Answer 8

a group of organisms that share a common ancestor/ called clade or cladogram

Question 9

Paraphyletic group

Answer 9

systematic rank that originated from a single common ancestor, but does not – as opposed to a monophyletic group – contain all descendants from this ancestor

Question 10

Polyphyletic group

Answer 10

organisms that are grouped together despite not being closely related. They may include organisms that have similar traits or appearances but do not share an evolutionary histor