Exam 1

Question 1

Natural selection is differential survival and reproduction of individuals within a population in response to environmental pressure

Answer 1

True

Question 2

Scientists agree on definition of species

Answer 2

False

Question 3

Populations evolve, not individuals

Answer 3

True

Question 4

Phylogeny is the evolutionary history of a group

Answer 4

True

Question 5

The earliest fossils are form eukaryotic organsim

Answer 5

False

Question 6

The age of Earth is 4.5 BYO

Answer 6

True

Question 7

Biological species concept (matching)

Answer 7

Based on reproductive isolation

Question 8

Phylogenic species concept (matching)

Answer 8

An irreducible (basal) cluster of organism

Question 9

Ecological species concept (matching)

Answer 9

Adapted to particular set of resources

Question 10

Organism’s ability to survive & reproduce

Answer 10

Fitness

Question 11

Which of the following is more fit?

Answer 11

500-year-old bristlecone pine tree that produced 100 offspring every year

Question 12

Natural selection causes what to happen?

Answer 12

Changes in allele frequencies within population

Question 13

All of the following are true of natural selection, EXCEPT

Answer 13

It works best in genetically uniform population

Question 14

Oldest known fossils?

Answer 14

3-4 BYO

Question 15

The first diverse animal world appeared during the

Answer 15

Cambrian explosion

Question 16

1st organisms on land were what?

Answer 16

Plants

Question 17

How long ago did dinosaurs go extinct?

Answer 17

65 million years ago

Question 18

Humans live in what era?

Answer 18

Cenozoic

Question 19

Life first began during the ______ period.

Answer 19

Archean