Biology Final

Question 1

Fossil record provides

Answer 1

Evidence about the history of life on earth

Question 2

What is relative dating?

Answer 2

Age of fossil determined by comparing its placement with fossils in other layers of the rock

Question 3

What is radioactive dating

Answer 3

Is the use of half-lives to determine the age of a sample

Question 4

What is artificial selection?

Answer 4

Is a technique in which the breeder selects particular traits

Question 5

Define camouflage

Answer 5

Is a structural adaption am enabling an organism to blend in with its environment

Question 6

Mimicry

Answer 6

An organism copy’s the appearance of another

Question 7

A total number of Genes present in a population is the

Answer 7

Gene Pool

Question 8

Allilic Frequency

Answer 8

Is the percentage in a particular population

Question 9

Stabilizing selection

Answer 9

Is the type of selection that favors average individuals in a population

Question 10

Any species with a multiple set of chromosomes is known as

Answer 10

Polyploid

Question 11

Natural selection

Answer 11

Is a mechanism for change in a population in which organisms with favorable variations live, reproduce, and pass their favorable traits

Question 12

Eras

Answer 12

Precambrian
Paleozoic
Mesozoic
Cenozoic

Question 13

About Precambrian

Answer 13

1. Covers about 88% of history
2. Not many fossils for this era because they were soft bodied
3. Life was in the sea

Question 14

About the Paleozoic era

Answer 14

1. Mostly life in water (marine life)

2. Diversification happened in the Cambrian period, called the Cambrian explosion

Question 15

About the Mesozoic Era

Answer 15

1. Time of the dinosaurs.
2. Mammals appeared
3. Birds appeared during Jurassic period

Question 16

About the Cenozoic era

Answer 16

1. Called the age of mammals

2. Mammals live in land, water, air