TEKS 8.11 8th Grade

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 ......

• desert into a tundra

• rainforest into a tundra

• grassland to a desert

• mountaintop into a hill

Tags

NGSS.MS-ESS2-2

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

• the number of crickets that hatch

• size and number of pecans on a tree

• growth height of sunflowers

• length of horns on a steer

Tags

NGSS.MS-LS1-5

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?

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

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

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

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

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-1

Complete the passage below.

Clown fish live in the waving tentacles of sea anemones in the ocean. The sea anemone provides a safe place for the clown fish to escape predators. The sea anemone, although it has poisonous​ tentacles, does not bother the clown fish and is not harmed by the clown fish. This relationship between organisms can be described as ​ ​ (a)  

• mutualism
• commensalism
• parasitisim
• predation

Tags

NGSS.MS-LS2-2

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

• beaver

• muskrat

• suckerfish

• trout

Tags

NGSS.MS-LS2-2

Which two organisms are most likely to be competitors?

(more than one correct answer)

• badger

• chipmunk

• hawk

• snake

Tags

NGSS.MS-LS2-1

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

• 1

• 2

• 3

• 4

Tags

NGSS.MS-LS2-2

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?

• consumers

• producers

• predators

• decomposers

Tags

NGSS.MS-LS2-3

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

• the number of Eucalyptus trees available

• the amount of rainfall in the spring

• the height and variety of fruit trees available

• the type of grass available

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

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?

• Parasitism

• Mutualism

• Predation

• Commensalism

Tags

NGSS.MS-LS2-2