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Unit 2: Diversity Pre

Total questions: 15

Worksheet time: 1hrs 15mins

Name
Class
Date
1.

A population of moths lived in a park. Before 1982, the park was full of birch trees with white bark. In 1982 a disease killed all the birch trees. Overtime, trees grew back in the park, but instead of birch trees, maple and oak trees with dark bark filled the park. Describe the change in population of white moths after the birch trees died in 1982.

a)

The white moth population decreases over time.

b)

The white moth population increases over time.

c)

The white moth population stays the same.

2.

A population of moths lived in a park. Before 1982, the park was full of birch trees with white bark. In 1982 a disease killed all the birch trees. Overtime, trees grew back in the park, but instead of birch trees, maple and oak trees with dark bark filled the park.


What is the best explanation for the changes in the moth population?

a)

Many of the white moths mutated into black moths.

b)

The black moths had a greater chance of surviving and reproducing.

c)

The white moths switched to having black offspring so they could survive.

d)

The white moths made themselves dark to hide from predators.

3.

A population of moths lived in a park. Before 1982, the park was full of birch trees with white bark. In 1982 a disease killed all the birch trees. Overtime, trees grew back in the park, but instead of birch trees, maple and oak trees with dark bark filled the park.


The changes in the moth population over time is an example of

a)

random variation

b)

selective breeding

c)

natural selection

4.

In a population of spiders there are 3 different sizes: small, medium, and large. The large spiders are easily seen by predators. The small spiders have a difficult time finding food. What will most likely happen to the population after many generations?

a)

There will be more medium spiders.

b)

Large spiders will learn to hide from predators.

c)

There will be less small and medium spiders.

d)

Small and large spiders will mutate.

5.

A population of mice, some with light-colored fur and some with dark-colored fur, moves into a soccer field with dark soil. A few generations later, most of the mice have dark-colored fur. Which of the following explains this change?

a)

Light-colored mice can run faster.

b)

Dark-colored mice have fewer offspring.

c)

Light-colored mice have changed color over generations.

d)

Dark-colored mice are better able to hide from their predators.

6.

A bear hibernates in the winter. What kind of adaptation is this?

a)

structural

b)

behavioral

7.

A porcupine's body is covered with sharp quills. What type of adaptation is this?

a)

Structural

b)

Behavioral

8.

The diagram shows a cell nucleus. In the diagram, label B represents a gene. Choose all the statements that are TRUE.

a)

Genes determine the inherited traits of an organism.

b)

In humans, most of the offspring's genes come from the mother.

c)

In humans, the genes that come from the father are usually dominant.

d)

Genes are located on the chromosome.

9.

A mother has 2 dominant genes for tongue rolling (RR) and can roll her tongue. The father has 2 recessive genes for tongue rolling (rr) and cannot roll his tongue. The parents have 4 kids.


Based on the parents' genes which children will be able to roll their tongues?

a)

All of the children

b)

Some of the children

c)

None of the children

10.

A mouse's tail gets caught in a mouse trap. When the mouse pulls free, the tail gets cut off.


If the mouse has babies later, how will this effect the tails of its babies?

a)

It will affect the length of the tails of all the babies.

b)

It will affect the length of the tails of some of the babies.

c)

It will not affect the length of the tails of any of the babies.

d)

It depends on how old the mouse was when its tail was cut off.

11.

A farmer wants to create a cat that excels at catching mice. She wants the cat to have quick reflexes, great vision, and sharp teeth.


How could the farmer create this cat?

a)

She can't. There is no way to breed a cat to get offspring with specific inherited traits.

b)

She could breed 2 cats with quick reflexes, great vision, and sharp teeth. All of the kittens would have the desired traits.

c)

She could breed 2 cats with quick reflexes, great vision, and sharp teeth. Over time and many generations, she would be able to get cats with the desired traits.

12.

A farmer wants to create a cat that excels at catching mice. She wants the cat to have quick reflexes, great vision, and sharp teeth.


The farmer's efforts to create a cat that excels at catching mice is an example of

a)

Random Variation

b)

Selective Breeding

c)

Natural Selection

13.

According to the cladogram diagram, which animal is most closely related to the primates?

a)

Amphibians

b)

Crocodiles

c)

Rodents and rabbits

d)

Birds

14.

According to the cladogram diagram, which animals have an egg with a shell?

a)

Amphibians

b)

Birds and Crocodiles

c)

Rodents & Rabbits and Primates

d)

Sharks and Ray-Finned Fish

15.

An arthropod is a group of organisms that has been around for about 500 million years. Characteristics that arthropods have in common are: exoskeletons, segmented bodies, bilateral symmetry, and many limbs.


Which is the best conclusion about the relationship between the centipede and the organism that made the fossil?

a)

The organism that made the fossil is likely an ancestor of the centipede.

b)

The organism that made the fossil is most likely NOT an ancestor of the centipede.

c)

It is not possible to make a conclusion about the relationship between the organisms with the information given.