Ecosystems

Which of the following is a TRUE statement about humans and the environment?

• All human activities destroy habitats

• All human activities are good for the environment

• All human activities are bad for the environment

• Some human activities are good for the environment

Tags

NGSS.MS-ESS3-3

Decomposers such as fungi, insects, and molds get their energy from __________.

• Water

• Decaying plants and animals

• Fertilizer

• All of the above

Tags

NGSS.MS-LS2-3

One year, there are more new snakes hatched in the forest than in other years. How would this affect the other organisms that year?

• The plants would have fewer nutrients.

• There would be an increase in the number of birds

• The tigers would have more to eat.

• There would be fewer mushrooms

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

The student draws a diagram to show the roles of the producers, consumers, and decomposers in the rainforest. How is the role of the decomposers different from the role of the producers?

• The decomposers eat the plants to get energy.

• The decomposers make food using energy from the sun

• The decomposers provide nutrients for the atmosphere.

• They decomposers break down dead organisms.

A student is developing a model of an ecosystem. Why does she want to include the sun in her model?

• The sun is needed to make the seasons on Earth.

• The sun keeps everything warm on Earth.

• The sun allows plants and animals to be part of the same ecosystem.

• The sun provides the energy for the production of food in the ecosystem.

Tags

NGSS.MS-LS2-3

Which of the following statements about producers is CORRECT?

• they make their own food

• they eat other organisms

• they make things other than food

• they obtain food by breaking down the remains of other living things

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following statements about consumers is CORRECT?

• they make their own food

• they eat other organisms

• they make things other than food

• they obtain food by breaking down the remains of other living things

Tags

NGSS.MS-LS2-3

Which of the following human activities has a positive effect on the environment?

• planting new forests

• recycling paper and plastic

• protecting endangered species

• All of the above

Tags

NGSS.MS-ESS3-3

NGSS.MS-LS2-5

How does an increase in the number of people on Earth negatively affect the environment?

• more water is used causing draughts and affecting habitats

• more fossil fuels are burned

• habitats are destroyed because more space is needed

• All of the above

Tags

NGSS.MS-ESS3-4

A wetland has been cleared to make space for a new housing development. Which of the following would be considered a negative effect to the bog turtle, a native organism living in the area?

• the bog turtles would eventually be taken in by residents as pets

• a new man–made lake would provide cleaner water to the bog turtle than the wetland

• there would be less predators in the area to prey on the bog turtle

• the bog turtle would no longer have the habitat it is accustomed to in which to lay its eggs

Tags

NGSS.MS-LS2-4