population and resources graphs

Which change to the food web would lead to an increase in the deer population? (choose all correct answers)

• an increase in the puma population

• a decrease in the grass population

• an increase in the grass population

• a decrease in the puma population

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which scenarios best applies to the above graph?

• The fox population increased because they did not reach their Carrying capacity.

• The rabbit population stayed the same because there were producing more rabbits then were being hunted.

• The fox population increase because there are plenty of rabbits to eat.

• The fox population decreased, while the rabbit population increased.

Tags

NGSS.MS-LS2-1

The population of deer in a certain area is monitored over a period of six years. The data is represented in the graph provided. Which of the following is the most likely explanation for the change in population in 2009?

• Wolves, which prey on deer, were being hunted more than usual.

• Rainfall in the previous spring was higher than the yearly average.

• Humans introduced grazing animals that feed on the same plants as the deer.

• More insects that pollinate flowering plants move into the habitat.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Claim: the consumption of natural resources by humans has a negative impact on the environment. What data would provide evidence for this claim?

• Increased human lifespan and increased ice cap size

• Increased human population and decreased habitats for plants and animals

• Increased consumption of resources by humans and increased biodiversity (variety) in nature

• Increased of fossil fuel burning by humans and decreased use of other resources

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-5

Define energy

• the ability to make things move or change

• a molecule that organisms can use to release the energy needed to survive

• a model that shows what eats what in an ecosystem

• a molecule that organisms can use to release energy, and that is made of carbon, hydrogen, and oxygen atoms

a small part that is meant to show what the whole is like

• a sample

• a bit

• a piece

• a molecule

Tags

NGSS.MS-PS1-1

When a population grows past the ecosystem's carrying capacity, what happens to the population?

• Continues to grow
• The population starts to die off to return to carrying capcity
• The population will go extinct due to lack of resources
• The population grows then finds a new carrying capacity

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

A consumer population is

• a population that eats organisms from another population

• a population that is eaten by organisms from another population

• a population that uses up more energy than other populations

• a population that gets it's energy all from plants

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

A large population of ducks lives in an area with a lake. In the last 40 years, the size of the duck population has stayed the same. What must be true about the duck population during the last 40 years?

• The number of ducks that were born was the same as the number of ducks that died.

• No ducks were born and no ducks died.

• Humans started protecting the duck population so they stopped dying.

• The ducks did not have any baby ducks during these years.

Tags

NGSS.MS-LS2-1

Choose all the factors that affect an increase or decrease in a population.

• availability of food sources

• deaths

• births

• scientific name

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4