31-40 acadly questions

Question 1

where would you see secondary succession?
1. after a glacier melts
2. after a volcano erupts
3. after a forest fire
4. on sand dunes along lake Ontario
5. all these places

Answer 1

after a forest fire

Question 2

The intermediate disturbance hypothesis argues that;
1. transitions between communities are narrow
2. the climax community is extremely predictable
3. periodic disturbances will promote higher biodiversity
4. biodiversity increases steadily during succession

Answer 2

periodic disturbances will promote higher biodiversity

Question 3

In old-field succession, an intermediate stage would likely include,
1. hardwood trees such as oak and hickory
2. annual plants
3. grasses
4. pine trees and shrubs

Answer 3

pine trees and shrubs

Question 4

In Gleason’s individualistic concept of succession, the following is true,
1. transitions between communities are narrow
2. the climax community is extremely predictable
3. species respond independently during succession
4. communities have coevolved as an integrated super-organism

Answer 4

species respond independently during succession

Question 5

Daniel Simberloff tested the theory of island biogeography in what island system?
1. Forest patches in agricultural land
2. mountain tops in the Rockies
3. Mangrove stands in the Florida keys
4. California channel islands
5. All of the above

Answer 5

Mangrove stands in the Florida keys

Question 6

When a forest gradually merges into a grassland over a wide area, the border between the two landscape patches is referred to as,
1. narrow border
2. convoluted border
3. perforated border
4. ecotone
5. corridor

Answer 6

ecotone

Question 7

Which of the following ecosystem has the lowest net primary production?
1. coral reef
2. tropical forest
3. swamps
4. corn field
5. temperate forest

Answer 7

corn field

Question 8

The process in which toxins or chemicals get concentrated in organisms at the top of the food chain is called,
1. Biointensification
2. Trophic cascade
3. Bioaccumulation
4. Predator absorption

Answer 8

Bioaccumulation

Question 9

Carbon dioxide is removed from the atmosphere during the process of,
1. respiration
2. decomposition
3. photosynthesis
4. combustion
5. all of the above

Answer 9

photosynthesis

Question 10

Which of the following forms the nitrogen can be assimilated by plants ?
1. Nitrates
2. Nitrogen gas
3. Ammonium
4. Amino Acids
5. DNA

Answer 10

Nitrates and ammonium

Question 11

The process in which organic compounds such as nitrogen are transformed into inorganic forms is termed,
1. mineralization
2. immobilization
3. bioaccumulation
4. translocation
5. respiration

Answer 11

mineralization

Question 12

approximately what proportion of plant biomass enters the detrital food chain?
1. 10%
2. 25%
3. 50%
4. 75%
5. 90%

Answer 12

90%

Question 13

Approximately what percent of the water on earth is freshwater?
1. 1%
2. 2.5%
3. 10%
4. 25%
5. 50%

Answer 13

2.5%

Question 14

Where are most of this freshwater found?
1. atmosphere
2. frozen in glaciers and ice
3. lakes such as the great lakes
4. under the earth’s surface in ground water
5. oceons

Answer 14

frozen glaciers and ice

Question 15

In the hydrologic cycle, where does water turnover most quickly?
1. groundwater
2. glaciers and ice
3. ocean
4, Atmosphere

Answer 15

atmosphere

Question 16

seasonal fluctuations in carbon dioxide concentrations are cuased by,
1. increased fossile fuel buring in winter
2. weathering of rock surfaces following seasonal rain events
3. summer melting of the permafrost
4. cycles of dormancy and photosynthesis in temperature vegetation
5. all of the above

Answer 16

cycles of dormancy and photosynthesis in temperature vegetation

Question 17

Which of the following is NOT a greenhouse gas,
1. Carbon dioxide
2. Methane
3. Hydrogen gas
4. water vapor

Answer 17

hydrogen gas

Question 18

What are Coleoptera?
1. gut bacteria
2. round worms
3. mosses
4. Beetles
5. A type of fungi

Answer 18

Beetles

Question 19

An area is over 70% disturbed by human activity and has > 1500 plant species is identified as a,
1. Biodiversity hotspot
2. megadiverse region
3. super-species preserve
4. wildlife ecoregion

Answer 19

biodiversity hotspot

Question 20

Since the start of the industrial revolution, where has excess CO2 accumulated?
1. In biomass of trees and other plants
2. Diffused into the oceans
3. In an unidentified sink
4. The atmosphere
5. All of the above

Answer 20

All of the above

Question 21

Which of the following is NOT is a major component of the nitrogen cycle?
1. Decomposition
2. Mineralization
3. Assimilation by plants
4. Photosynthesis
5. Fixation by bacteria and cyanobacteria

Answer 21

photosynethesis

Question 22

Which species went extinct about 11,000 years ago?
1. Passenger pigeon
2. Saber-toothed tiger
3. Tyrannosaurus rex
4. Dodo bird
5. Black-naped pheasant-pigeon

Answer 22

saber-toothed tiger

Question 23

If a region has high gamma diversity, what else would most likely be true?
1. It would have a low beta diversity
2. most species would be found throughout the region
3. It would have a low conservation value
4. It would contain different habitat types and communities

Answer 23

It would contain different habitat types and communities