Mod 4 - Ecosystem Dynamics Review

What are the two main processes that add carbon to atmosphere?

• Respiration

• Combustion

• Decomposition

• Photosynthesis

SELECT ALL of the density-dependent limiting factors.

• Predation

• Disease

• Parasites

• Competition

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

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

• Biomagnification

Tags

NGSS.MS-LS2-5

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

According to the chart, which year had the smallest population of coyotes?

• 1990

• 2000

• 2007

• 2009

Tags

NGSS.MS-LS2-1

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-LS2-2

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