Unit 4 Review

A certain species of wasp is the only pollinator for a certain species of plant. The plant is the only source of food and shelter for the wasp.

What will most likely happen to the plant population if an introduced disease kills all the wasps in a short period of time?

• The plant will change into a different species.

• The plant will become extinct.

• The plant will be pollinated by other species of wasps.

• The plant will grow more slowly

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What do we call the part of the graph where the line levels out, and what causes it?

• Carrying capacity and limiting factors

• Carrying capacity and too much water in a system

• Exponential growth and limiting factors

• None of the above.

What is the one way (one path) flow of energy in an ecosystem called?

• Biomass Pyramid

• Energy pyramid

• Food chain

• Food web

Tags

NGSS.MS-LS1-6

Denitrification releases what into the atmosphere?

• Carbon

• Nitrogen

• Water

• Oxygen

Tags

NGSS.MS-LS2-3

Which organisms are most critical in the nitrogen cycle?

• Bacteria

• Nitrates

• Animals

• Plants

Tags

NGSS.MS-LS2-3

As bison walk through the grass they disturb insects which are then eaten by cowbirds. What type of symbiotic relationship exists between the bison and the cowbirds?

• Parasitism

• Mutualism

• Commensalism

Each of the following are abiotic factors EXCEPT:

• Soil

• Rainfall

• Temperature

• Plant life

Each of the following is density-dependent EXCEPT:

• Disease

• Unusual weather

• Competition

• Predation

What causes exponential growth in a population?

• Too many biotic factors and not enough abiotic factors

• Climax community

• No limiting factors

• Human interference

A line on a graph that has an S-shape is characteristic of which type of growth?

• Logistic

• Exponential

• Limited

• Continual