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Flashcards in Final Deck (76)
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1

Type I survivorship curve indicates

low juvenile mortality and high mortality in older adults.

2

All of the following statements concerning the hydrologic cycle are true except:

Transpiration is not involved.

3

The camel and saguaro cactus both

All of the choices are correct.

4

On the Serengeti plain of eastern Africa, large grazing mammals consume what fraction of total primary production?

about 66%

5

Movement of water _____________ its concentration gradient is called ________________.

down; diffusion

6

Humans would best be represented by which of the following survivorships curves?

1

7

Coriolis effect causes winds in the

Northern Hemisphere to deflect to the right.

8

Which of the following vertical aquatic zones is correctly ordered?

epipelagic, mesopelagic, bathypelagic, abyssal, hadal

9

Saturation water vapor pressure

both increases with temperature and parallels vapor pressure density.

10

If the age distribution diagram has the smallest concentration of individuals in the bottom portion or is considered to be an urn shape, this indicates that

the population is declining.

11

Nalini Nadkarni's study of tropical and temperate rain forests determined that

epiphyte mats contain a significant source of nutrients.

12

Logistic population growth produces a __________ population growth curve.

S-shaped

13

All of the following are components that influence a microclimate except:

None of the choices are correct.

14

Herbivores, carnivores, and detritivores are all

heterotrophs

15

The Africanized honeybee stopped spreading southward through South America by about 1983 in response to

unfavorable climatic factors.

16

Adaptation to the environment by a population does not include

None of the choices are correct.

17

Which of the following survival mechanisms is/are best suited for intense heat and drought?

estivation

18

Among lakes, primary productivity seems to be mainly controlled by levels of

nutrients

19

Eutrophic lakes are characterized by

high nutrient levels.

20

The production of new organic matter, or biomass, by autotrophs in a system is called ____________.

primary production

21

The body temperature of ____________ varies directly with the environment.

poikilotherms

22

If a person were to place a marine fish into a fresh water lake, water would diffuse

down its concentration gradient and enter the fish.

23

Which of the following is the correct relationship between gross primary production (GPP), net primary production (NPP), and respiration (RESP)?

NPP = GPP – RESP

24

The tiger beetle Cicindela longilabris inhabits higher latitudes and elevations than other North American tiger beetles; Schultz, Quinlan, and Hadley concluded that all of the following factors contributed to these cooler environmental preferences except:

increased water proofing.

25

The highest level of ecological organization focuses on

the biosphere.

26

In many species, the females can reproduce by the process of parthenogenesis. Why do males persist in those species?

to ensure genetic diversity

27

'Rarity II' can be described as

extensive range, narrow habitat tolerances, and large local populations.

28

A biome is characterized primarily by

climate and predominate plant types.

29

In order to determine whether a species is common or rare, ecologists use all of the following criteria except:

evolutionary existence.

30

In a population of lizards, the average and long length tails are selected against and the short tails are selected for. This is an example of

directional selection.