Ecosystem Dynamics

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

• Respiration

• Combustion

• Decomposition

• Photosynthesis

Which of the following processes removes carbon from the atmosphere?

• Photosynthesis

• Combustion

• Decomposition

• Respiration

When a population is increasing.... (SELECT ALL THAT APPLY)

• Birth rate > Death rate

• Birth rate < Death rate

• Immigration > Emigration

• Immigration < Emigration

What kind of growth is this?

• Logistic

• Exponential

• Carrying Capacity

• Secondary

Estimate the carrying capacity.

• 100 deer

• 80 deer

• 60 deer

• 40 deer

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

SELECT ALL of the density-dependent limiting factors.

• Predation

• Disease

• Parasites

• Competition

SELECT ALL of the density-independent limiting factors.

• Unusual Weather

• Natural Disasters

• Human Activity

• Water Availability

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