Quiz about Life Science Review

Question 1

What is the history of life documented by fossils?

Accepted Answer

Fossil Record

Answer

Geological Time Scale

Answer

Index Fossil

Answer

Plate Tectonic Theory

Question 2

The oldest fossils are found on the ______ layer, while the youngest fossils are found on the ______ layer.

Accepted Answer

bottom, top

Answer

bottom, bottom

Answer

top, bottom

Answer

top, top

Question 3

Which of the following CAN'T the fossil record prove about a species?

Accepted Answer

Its color

Answer

Its evolution

Answer

Its existence

Answer

Its diversity

Answer

Its extinction

Question 4

How do you determine how diverse a time period was?

Accepted Answer

Count the number of different fossils in the same layer.

Answer

Count the number of different fossils in different layers.

Answer

Count the number of identical fossils in different layers.

Answer

Count the number of identical fossils in identical layers.

Question 5

Which layer would be the most diverse?

Accepted Answer

A layer with 8 different fossils.

Answer

A layer with 5 identical fossils.

Answer

A layer with 10 identical fossils.

Answer

A layer with 2 different fossils.

Question 6

Comparing how the anatomy of the fossil has changed over time BEST shows how the species has

Accepted Answer

evolved.

Answer

existed.

Answer

adapted.

Answer

died.

Question 7

When a species no longer exists in the upper layers, what can scientists conclude?

Accepted Answer

That it went extinct.

Answer

That it is hiding.

Answer

That it evolved into a new species.

Answer

That it never really existed.

Question 8

If the fossil layer contains fossils with shells and fins, then the environment was probably ______. If the fossil layer contains fossils with legs and wings, then the environment was probably _____.

Accepted Answer

aquatic; terrestrial

Answer

aquatic; aquatic

Answer

terrestrial; aquatic

Answer

terrestrial; terrestrial

Question 9

When do populations either adapt or go extinct?

Accepted Answer

Anytime the environment significantly changes

Answer

Always

Answer

Never

Answer

At random times

Question 10

What is it called when more than 50% of populations living in an area die?

Accepted Answer

A mass extinction event.

Answer

A tragedy.

Answer

A catastrophe.

Answer

A global warming event.

Question 11

What are the two biggest geographic causes of rapid mass extinction events?

Accepted Answer

Volcanic Eruptions

Accepted Answer

Asteroid Impacts

Answer

Earthquakes

Answer

Hurricanes

Question 12

How do volcanoes and asteroids cause mass extinctions?

Accepted Answer

They put dust and ash into the atmosphere, blocking the sunlight.

Answer

They cause more than 50% of species to burn to death.

Answer

They cause giant cracks in the ground which the species fall through.

Answer

They trigger a series of earthquakes and tsunamis which destroy the earth.

Question 13

What are two causes of gradual geographic changes which can lead to mass extinction events?

Accepted Answer

Climate Change

Accepted Answer

Tectonic Plate Movement

Answer

Volcanoes

Answer

Asteroids Impacts

Question 14

How many major mass extinction events in history?

Accepted Answer

5

Answer

1

Answer

10

Answer

15

Question 15

What percentage of all life on Earth went extinct during the largest mass extinction event?

Accepted Answer

96%

Answer

50%

Answer

75%

Answer

100%

Question 16

What happens to the surviving populations after a mass extinction event?

Accepted Answer

They adapt to the new environment.

Answer

They also die.

Answer

They continue to exist with no structural changes.

Answer

They become a whole new species.

Question 17

What is the term for all the same members of a species living in the same area?

Accepted Answer

Population

Answer

Ecosystem

Answer

Environment

Answer

Community

Question 18

What is the term for the physical appearance of an organisms genes?

Accepted Answer

Phenotype

Answer

Genotype

Answer

Molecular DNA

Answer

Embryology

Question 19

When does variation within a population occur?

Accepted Answer

When they have different phenotypes.

Answer

When they have identical phenotypes.

Answer

When they have identical genotypes.

Answer

When they asexually reproduce.

Question 20

True or False: Adaptations help an organism survive in its environment.

Accepted Answer

True

Answer

False

Question 21

Why is variation useful to a population?

Accepted Answer

If the environment changes, then some of the members of the population will survive.

Answer

If the environment stays the same, then all the members of a population will die.

Answer

If the environment changes, then all the members of a population will survive.

Answer

If the environment changes, then all of the members of a population will die.

Question 22

What determines which phenotype is the best?

Accepted Answer

The environment.

Answer

The parents.

Answer

It is completely random.

Answer

The phenotype of an organism does not really impact its ability to survive.

Question 23

What is the process of environmental changes causing a species to gradually change over time?

Accepted Answer

Natural Selection

Answer

Artificial Selection

Answer

Selective Breeding

Answer

Genetic Engineering

Question 24

Green tree frogs and gray tree frogs exist in a swamp. Green tree frogs blend in with the plants and gray tree frogs blend in with the mud and logs. The swamp experiences a drought and the green plants die. What is the population?

Accepted Answer

Gray and Green Tree Frogs

Answer

Swamp

Answer

Mud and Logs

Answer

Drought

Question 25

Green tree frogs and gray tree frogs exist in a swamp. Green tree frogs blend in with the plants and gray tree frogs blend in with the mud and logs. Is the population varied?

Accepted Answer

Yes

Answer

No

Question 26

Green tree frogs and gray tree frogs exist in a swamp. Green tree frogs blend in with the plants and gray tree frogs blend in with the mud and logs. The swamp experiences a drought and the green plants die. What is the selecting agent?

Accepted Answer

Drought

Answer

Skin Color

Answer

Mud

Answer

Plants

Question 27

Green tree frogs and gray tree frogs exist in a swamp. Green tree frogs blend in with the plants and gray tree frogs blend in with the mud and logs. The swamp experiences a drought and the green plants die. How will the population change?

Accepted Answer

Gray tree frogs will increase.

Answer

Green tree frogs will increase.

Answer

Both green and gray tree frogs will increase.

Answer

The population will not change.

Question 28

In artificial selection, what is the selecting agent?

Accepted Answer

Humans

Answer

The environment

Answer

Predators

Answer

It's Random

Question 29

What is the choosing of two parents to mate to produce desired offspring?

Accepted Answer

Selective Breeding

Answer

Cloning

Answer

Genetic Engineering

Answer

Natural Selection

Question 30

How does selective breeding usually impact the genetic diversity of a population?

Accepted Answer

Decreases Diversity

Answer

Increases Diversity

Answer

It Doesn't Usually Affect Diversity

Question 31

What is the breeding of two parents for the same trait?

Accepted Answer

Inbreeding

Answer

Genetic Engineering

Answer

Cloning

Answer

Hybridization

Question 32

What is the breeding of two parents for different traits?

Accepted Answer

Hybridization

Answer

Genetic Engineering

Answer

Cloning

Answer

Inbreeding

Question 33

What is asexual reproduction that produces offspring that are genetically identical to the parent?

Accepted Answer

Cloning

Answer

Inbreeding

Answer

Hybridization

Answer

Genetic Engineering

Question 34

What is it when the DNA sequence of an organism is manipulated, often by inserting the DNA of a different organism into the original strand?

Accepted Answer

Genetic Engineering

Answer

Cloning

Answer

Inbreeding

Answer

Hybridization

Question 35

What type of artificial selection is it when a farmer crosses a type of pea plant that produces many pods with a type of pea plant that is resistant to disease?

Accepted Answer

Hybridization

Answer

Cloning

Answer

Genetic Engineering

Answer

Inbreeding

Question 36

What type of artificial selection is it when two parents with similar genes are used to produce a desired trait but may also result in a higher risk of genetic defects?

Accepted Answer

Inbreeding

Answer

Cloning

Answer

Hybridization

Answer

Genetic Engineering

Question 37

What is the term for species that are still alive today?

Accepted Answer

Extant

Answer

Biotic

Answer

Extinct

Answer

Asexual

Question 38

The more similar two species are,

Accepted Answer

the more closely related they are.

Answer

the less closely related they are.

Answer

the greater the risk of death.

Answer

the greater chance their DNA sequence is different.

Question 39

True or False: Species that are closely related descended with modifications from a common ancestor.

Accepted Answer

True

Answer

False

Question 40

What are four sources of evidence for common ancestry?

Accepted Answer

DNA (Molecular)

Accepted Answer

Homologous Structures

Accepted Answer

Embryology

Accepted Answer

Fossil Record

Answer

Anatomical Differences

Question 41

What are homologous structures?

Accepted Answer

Structures with the same anatomy and different functions.

Answer

Structures with the same anatomy and the same function.

Answer

Structures with different anatomy and the same function.

Answer

Structures with different anatomy and different functions.

Question 42

Bats wings and dolphins fins are similar in structure but differ in function. What does this imply?

Accepted Answer

The have a common ancestor.

Answer

They evolved randomly.

Answer

They are unrelated.

Answer

They both use their wings and fins for the same function.

Question 43

What is an embryo?

Accepted Answer

The earliest stages of developing life forms.

Answer

The adult form a life.

Answer

The adolescent form of life.

Answer

The baby form of life.

Question 44

How can embryos prove common ancestry?

Accepted Answer

The more similar they are, the more closely related they are.

Answer

The less similar they are, the more closely related they are.

Answer

The more similar they are, the less closely related they are.

Answer

The similar embryos are completely random.

Question 45

How can DNA prove relatedness?

Accepted Answer

The less similar the DNA sequence, the less related they are.

Answer

The less similar the DNA sequence, the more related they are.

Answer

The more similar the DNA sequence, the less related they are.

Answer

Comparing DNA sequences cannot show relatedness.

Question 46

What is the difference between a prokaryote and a eukaryote?

Accepted Answer

Only eukaryotes have a nucleus.

Answer

Only prokaryotes have a nucleus.

Answer

Only prokaryotes are single-celled.

Answer

Only eukaryotes are single-celled.

Question 47

Moist, permeable skin, can live on land and water.

Accepted Answer

Amphibians

Answer

Fish

Answer

Reptiles

Answer

Birds

Answer

Mammals

Question 48

Wings, Beaks, Feathers, Lay Eggs

Accepted Answer

Birds

Answer

Fish

Answer

Amphibians

Answer

Reptiles

Answer

Mammals

Question 49

Dry, scaly skin, lays eggs, lives on land

Accepted Answer

Reptiles

Answer

Fish

Answer

Birds

Answer

Amphibians

Answer

Mammals

Question 50

Aquatic, Fins, Lays Eggs, Gills

Accepted Answer

Fish

Answer

Birds

Answer

Amphibians

Answer

Reptiles

Answer

Mammals

Question 51

Fur or hair, live birth, mammary glands

Accepted Answer

Mammals

Answer

Fish

Answer

Birds

Answer

Reptiles

Answer

Amphibians

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