Opensci Ed Ecosystem Dynamics

Which type of symbiosis involves both species benefitting? +/+

• Mutualism

• Commensalism

• Parasitism

Which type of symbiosis involves one species benefitting while the other is harmed? +/-

• Mutualism

• Commensalism

• Parasitism

Which type of symbiosis involves one species benefitting while the other is unaffected? +/0

• Mutualism

• Commensalism

• Parasitism

Which of the following is NOT a threat to biodiversity?

• Overhunting

• Invasive species

• Water purification

Tags

NGSS.MS-LS2-5

All of the different species of living things in a given area is called:

• Population

• Community

• Ecosystem

• biome

Coyote populations have been increasing in recent years. Which would not be a reason for their increase?

• More food is available

• Less competition from other predators

• Less available habitat to live in.

• Less threat of being hunted by humans

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

If the populations of grasshoppers would decrease, what affect would that have on the population of lizards?

• Increase

• Stay the same

• Decrease

• Unable to determine

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

If the population of rattlesnakes were to decrease, why would that help to increase the population of hawks?

• Rattlesnakes eat hawks

• Hawks eat rattlesnakes

• Rattlesnakes and hawks both eat kangaroo rats.

• It would not help the hawk population.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Rats were introduced to Australia and the rat population exploded over several years. Which would not be a reason for their population growing?

• Large amounts of available food

• Increase in the number of predators.

• More water available

• Large habitats to live in

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which is an abiotic factor that influences the population of the rats?

• The amount of food available

• The amount of water available

• The number of predators available

• The amount of competition in the ecosystem

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4