Unit 6 Lesson 8

After a volcanic eruption, lava covers the land. What is the order that plants grow to repopulate the area?

• Lichens → Shrubs → Grasses → Trees

• Lichens → tree → shrubs→Grasses

• Grasses → Lichens → Shrubs → Trees

• Lichens → Grasses → Shrubs → Trees

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

What is the term that describes a steady and stable community?

• peak community

• turf community

• climax community

• disturbed community

Only a small amount of the energy stored in food is available to the next organism in a food chain because _______.

• there are too many producers

• there are fewer top consumers in a food chain

• primary and secondary consumers compete for food

• most of the available energy is used by the organism or released as heat

Tags

NGSS.MS-LS2-3

What percent of energy moves on to each trophic level in a food chain?

• 1%

• 10%

• 100%

• .01%

Tags

NGSS.MS-LS2-3

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

• There would be a decrease in the small bird population.
• There would be a decrease in the grass/flowers population.
• There would be a decrease in the mice population.
• There would be an increase in the grass/flowers population.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Describe what would happen to the zebra population and the plant population if the cheetah and hyena both left the ecosystem.

• The zebra population would decrease with the absence of predators; the plant population would stay the same.

• The zebra population would greatly increase, causing the plant population to decrease.

• The zebra population would decrease, causing the plant population to increase.

• The zebra population would greatly increase, causing the plant population to also increase.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

A foreign insect is introduced into the Texas. It eats a lot of leaves, and trees start to become leafless. Many different animals feed on the new insect, but even they cannot control its numbers. Eventually, trees begin to die. Why would a rapid increase of the new insect population cause certain species of herbivores to vanish or be fewer in number?

• They would not have enough to eat. 
• They would not have enough space to live.
• They would not have tree bark to eat.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

If a baseball player hits a baseball and it accelerates away from the bat, what are the action/reaction forces in this scenario?

• The baseball player and the ground

• The baseball bat and the baseball

• Gravity and inertia

• The baseball players arms and the bat

Tags

NGSS.MS-PS2-1