Quiz about TEKS 8.11 8th Grade

Question 1

A scientist made the drawings above to show how the root structures of a plant species changed over time.

Complete the sentece below:

Based on these drawings, the plant species MOST LIKELY lived in an area that changed from a ......

Accepted Answer

grassland to a desert

Answer

desert into a tundra

Answer

rainforest into a tundra

Answer

mountaintop into a hill

Question 2

Which of the following is the LEAST affected by seasonal environmental conditions?

Accepted Answer

length of horns on a steer

Answer

the number of crickets that hatch

Answer

size and number of pecans on a tree

Answer

growth height of sunflowers

Question 3

Fossils of tropical plants have been found in coal mines in the North Eastern United States. This type of plant is no longer found in this region of the US. What is the most likely cause of the disappearance of tropical plants in the Northeast?

Accepted Answer

The climate of the area is different than it was when tropical plants were common.

Answer

Volcanic activity in the Northeast caused the tropical plants to die.

Answer

The area is so heavily populated that diverse plant growth is no longer found.

Answer

Air pollution and acid rain changed the pH of the soil and caused the tropical plants to die.

Question 4

According to the food web above, which organism(s) prey on suckerfish? (more than one correct answer)

Accepted Answer

muskrat

Accepted Answer

trout

Answer

beaver

Answer

suckerfish

Question 5

Which two organisms are most likely to be competitors?

(more than one correct answer)

Accepted Answer

badger

Accepted Answer

snake

Answer

chipmunk

Answer

hawk

Question 6

According to the food web above, how many different animals does the alligator feed on?

Accepted Answer

3

Answer

1

Answer

2

Answer

4

Question 7

Bacteria and mold break down fallen leaves on the forest floor. When they do this, they release carbon dioxide into the atmosphere and nitrogen to the soil. Which of the following roles do bacteria and mold have in the environment?

Accepted Answer

decomposers

Answer

consumers

Answer

producers

Answer

predators

Question 8

Which of these factors has the greatest influence on how many Koala live in an area?

Accepted Answer

the number of Eucalyptus trees available

Answer

the amount of rainfall in the spring

Answer

the height and variety of fruit trees available

Answer

the type of grass available

Question 9

Many times a shark is seen with pilot fish swimming around it, eating scraps of food from the shark's meal. The shark is not harmed by the pilot fish, and the pilot fish benefits from the shark. What kind of relationship is this?

Accepted Answer

Commensalism

Answer

Parasitism

Answer

Mutualism

Answer

Predation

Question 10

A company has purchased 15,000 acres of forest. The loggers harvest mature trees in order to supply lumber for new homes. According to the graph, the Spotted Owl and the Hawk populations are the most negatively affected organisms. What would be the most likely explanation of why this has occurred?

Accepted Answer

The owl and hawk populations have dropped because the logging has removed the places they used for their nests.

Answer

The Owl and Hawk numbers have dropped because the logging has depleted their food source.

Answer

The owl and hawk populations have dropped because of the pollution from the logging equipment.

Answer

The owl and hawk populations have dropped because they have been scared away by the presence of humans.

Question 11

Fossils of tropical plants and animals can be found buried in limestone rock in the North Texas area. These plants and animals are no longer found in this region. What is the most likely cause of the disappearance of these tropical plants and animals?

Accepted Answer

The climate in that area is different today than when tropical plants and animals lived there.

Answer

Earthquakes and volcanoes destroyed all the tropical plants and animals.

Answer

Tropical animals ate all the tropical plants and everything died out.

Answer

Air pollution and acid rain killed off all the tropical plants and animals.

Question 12

Water lilies have a unique set of traits. Like land plants, water lilies produce fragrant flowers. Like some water plants, the leaves of water lilies are held near the surface by small air-filled sacs. In order to survive as a land plant, a water lily would MOST LIKELY need to develop an adaptation to carry out which function?

Accepted Answer

providing support

Answer

obtaining energy

Answer

obtaining food

Answer

producing fruit

Question 13

Over many years, winters in a particular region become increasingly colder. As a result, food becomes less available. Which of the following adaptations would BEST help an animal species survive both of these changes?

Accepted Answer

adding a thick layer of fat under the skin

Answer

changing coat color with the season

Answer

developing teeth with a broad, flat shape

Answer

becoming more sensitive to smells

Question 14

Perry applies a small amount of liquid between his dog's shoulder blades each month. The liquid helps prevent insects from bothering his dog. Lately, the liquid does not keep fleas off his dog.

What is the likely cause of this change?

Accepted Answer

The fleas that survived exposure to the liquid once have produced offspring that are resistant to the liquid.

Answer

The weather conditions have changed. There are more fleas living in Perry's yard.

Answer

The liquid has changed the dog's fur over time. Now the liquid is absorbed into the fur rather than staying on the skin.

Answer

Perry gives his dog a bath after applying the liquid and the liquid is not able to work correctly.

Question 15

An environment becomes warmer and drier over many years. Which adaptation is MOST LIKELY to help plants survive this change?

Accepted Answer

waxy leaves

Answer

bright flowers

Answer

stubby roots

Answer

long stems

Question 16

Which of the following is the MOST likely negative effect of damming rivers to supply hydroelectric energy?

Accepted Answer

loss of fish habitat

Answer

increased fossil fuel costs

Answer

decreased use of electricity

Answer

higher levels of air pollution

Question 17

Many small island communities are dependent upon fishing in the waters around them. As humans have advanced their technology, they have gained the ability to be more successful at fishing. Recently, the communities have had a hard time catching fish, even with the great technology. Why is this occurring?

Accepted Answer

The fish population has decreased because of overfishing.

Answer

The fish have adapted to the new fishing technologies.

Answer

The fish have migrated to get away from the technology.

Answer

The fish population that remains is camouflaged to the technology.

Question 18

This chart illustrates the type and number of items collected during a clean up of a beach. Based on the chart, what approximate percentage of the total items result from the action of people?

Accepted Answer

75%

Answer

25%

Answer

50%

Answer

65%

Question 19

The image below displays the direction and magnitude of two different forces acting on an object. Which of the following statements accurately describe the resulting motion of the object based on the forces acting upon it?

Select TWO correct answers.

Accepted Answer

The object will move to the left

Accepted Answer

The net force is 20 N.

Answer

The object will remain stationary.

Answer

The object will move to the right.

Answer

The net force is 80 N.

Question 20

In an investigation over force, mass, and acceleration, five different students lined up behind five different objects. Each student pushed their assigned object with the same amount of force as the other students. The distance traveled by each object is listed in the table below.

Based on the data displayed in the table above, which of the following conclusions can be made concerning the objects involved in the investigation?

Select TWO correct answers.

Accepted Answer

Object 3 had the greatest mass.

Accepted Answer

Object 4 had the least mass.

Answer

All of the objects were made of different material.

Answer

Object 4 had the greatest mass.

Answer

Objects 1, 3, and 5 were made of different material than Objects 2 and 4.

Question 21

Jonas and his family are moving to another part of the city. As Jonas, his brother, and his Dad were driving one of the trucks filled with furniture to their new home, Jonas noticed that the truck seemed to take longer to stop now that it was heavier with the furniture. Which Newton's Law explains why this happens?

Accepted Answer

Newton's Second Law

Answer

Newton's First Law

Answer

Newton's Third Law

Answer

Newton's Laws do not explain why this happens.

Question 22

How are speed and velocity different?

Accepted Answer

.

Velocity includes direction

Answer

Speed includes direction

Answer

Speed indicates momentum

Answer

Velocity includes momentum

Question 23

At which point on the diagram is the number of hours of daylight longest in North America?

Accepted Answer

Point A

Answer

Point B

Answer

Point C

Answer

Point D

Question 24

Which moon phases are associated with the highest tides?

(select all correct answers)

Accepted Answer

full

Accepted Answer

new

Answer

first quarter

Answer

third quarter

Answer

waxing crescent

TEKS 8.11 8th Grade

30 questions

A scientist made the drawings above to show how the root structures of a plant species changed over time.
Complete the sentece below:
Based on these drawings, the plant species MOST LIKELY lived in an area that changed from a ......

Which of the following is the LEAST affected by seasonal environmental conditions?

Fossils of tropical plants have been found in coal mines in the North Eastern United States. This type of plant is no longer found in this region of the US. What is the most likely cause of the disappearance of tropical plants in the Northeast?

According to the food web above, which organism(s) prey on suckerfish? (more than one correct answer)

Which two organisms are most likely to be competitors?
(more than one correct answer)

According to the food web above, how many different animals does the alligator feed on?

Bacteria and mold break down fallen leaves on the forest floor. When they do this, they release carbon dioxide into the atmosphere and nitrogen to the soil. Which of the following roles do bacteria and mold have in the environment?

Which of these factors has the greatest influence on how many Koala live in an area?

Many times a shark is seen with pilot fish swimming around it, eating scraps of food from the shark's meal. The shark is not harmed by the pilot fish, and the pilot fish benefits from the shark. What kind of relationship is this?

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TEKS 8.11 8th Grade

30 questions

A scientist made the drawings above to show how the root structures of a plant species changed over time.Complete the sentece below:Based on these drawings, the plant species MOST LIKELY lived in an area that changed from a ......

Which of the following is the LEAST affected by seasonal environmental conditions?

Fossils of tropical plants have been found in coal mines in the North Eastern United States. This type of plant is no longer found in this region of the US. What is the most likely cause of the disappearance of tropical plants in the Northeast?

According to the food web above, which organism(s) prey on suckerfish? (more than one correct answer)

Which two organisms are most likely to be competitors?(more than one correct answer)

According to the food web above, how many different animals does the alligator feed on?

Bacteria and mold break down fallen leaves on the forest floor. When they do this, they release carbon dioxide into the atmosphere and nitrogen to the soil. Which of the following roles do bacteria and mold have in the environment?

Which of these factors has the greatest influence on how many Koala live in an area?

Many times a shark is seen with pilot fish swimming around it, eating scraps of food from the shark's meal. The shark is not harmed by the pilot fish, and the pilot fish benefits from the shark. What kind of relationship is this?

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

A scientist made the drawings above to show how the root structures of a plant species changed over time.
Complete the sentece below:
Based on these drawings, the plant species MOST LIKELY lived in an area that changed from a ......

Which two organisms are most likely to be competitors?
(more than one correct answer)