a goal of conservation biology is

Counter the loss of biodiversity

Biodiversity is concerned with?

genetic diversity within an between pop. of a species.

wolves are a keystone species because?

They positively affect many species

reintroduction of wolves into Yellowstone N.P. caused?

ecological changes in about 25 species

area with high species diversity

Restoration ecology is?

restoring ecosystems to pre degraded state.

top predators are most affected by DDT because?

consume prey where pesticides are concentrated

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Honors Biology ch 38

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#Review of Conservation Biology

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Questions 23

Answers

1
Coastal dead Zones are caused by?
nutrient pollution
DDT
CFC's
acid precipitation
2
a goal of conservation biology is
Counter total biodiversity
Counter the loss of biodiversity
Maximize habitat
Catalogue species
3
Biodiversity is concerned with?
commensal relationships between species
mutualistic associations between fungi and algae.
genetic diversity within an between pop. of a species.
relationships in food chains
4
wolves are a keystone species because?
Prey on the sick and weak animals
they help the grasslands
They positively affect many species
they maintain prey herds health
5
What can counteract the increase of CO2 into the atmosphere
ozone layer
respiration
photosynthesis
greenhouse gasses
6
US endangered species act oversees?
about 20% of endangered species.
natural water ways
the health of off-shore species
threatened species
7
Pick the likely result of thinning of the ozone layer.
increase in skin cancer
clear skies over antarctica
elimination of flying insects
Global Climate Change
8
The cause of climate change is?
rise in greenhouse gasses
rise in ocean levels
heat absorption by the oceans
pollution
9
habitat fragmentation causes?
reduction in population size
too many animals migrating
habitat destruction
loss of food
10
Name the single greatest threat to biodiversity.
Habitat destruction
Bart Simpson passing gas
Global Warming
Climate Change
11
reintroduction of wolves into Yellowstone N.P. caused?
migration of prey animals out of the park.
ecological changes in about 25 species
about 13 human deaths
migration of wolves to Canada
12
A hot spot is?
exotic species
caused by biological magnification
area with many species
area with high species diversity
13
What % of pharmacals contain substances from plants?
30%
10%
50%
25%
14
Restoration ecology is?
landscape ecology
restoring ecosystems to pre degraded state.
bioremediation
nearly impossible
15
Phenotypic variation caused by climate change is called?
population plasticity
pop. fragmentation
phenotypic drift
phenotypic plasticity
16
movement corridors?
allow harmful gene flow
increase mutation rate
allow the spread of disease
increase inbreeding
17
Red-cockaded woodpecker depends on?
open water
thick vegetation
trees
fire
18
The rate of extinction is how many times higher now than in the last 100,000 yrs?
10 times
1000 times
100 times
Too many times to calculate
19
top predators are most affected by DDT because?
consume prey where pesticides are concentrated
are especially sensitive to chemicals
consume pesticides where prey are concentrated
have very long life spans
20
As climate changes populations avoid extinction through?
genetic modification
genetic adaptation
distribution of populations
evolutionary adaptation
21
movement corridors
connect isolated habitats
connect endangered and threatened species
connect routes taken by migrating animals
connect buffer zones
22
a group of interacting ecosystems is a?
biome
mega-ecosystem
landscape
an assemblage
23
Humans have caused the decline of what % of species?
35%
22%
73%
17%

Honors Biology ch 38 Flashcards | StudBud