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WorksheetsStandard 2 Review
Total questions: 13
Worksheet time: 10mins
If keystone species are removed (eaten by predators, killed by hunters, etc) the ecosystem will...
remain stable
become unstable
become a climax community
not change
More biodiversity leads to ________ sustainability.
no
higher
lower
less
no
_____ succession begins on lifeless areas like rock. ______ succession begins on soil.
secondary, primary
primary, secondary
ecological, primary
tertiary, secondary
.
Which of the following leads to secondary succession?
glaciers receding
wild fires
parking lots being abandoned
volcanic eruptions
Which would mean the community is probably a climax community?
lichens and mosses
tall grasses and weeds
green algae
tall trees and large animals
Humans depend on organisms for food, medicine, clothing, etc. So we need biodiversity to be ______.
high
low
we don't need biodiversity
nonrenewable
Which of the following is NOT one of the ways in which an invasive species affects an environment?
spreads disease
increases biodiversity
preys on native species
alters food webs
Hurricanes, fires, floods, and farming can all lead to _____ succession
primary
secondary
Short term changes happen over _____ to ______ of years.
days to hundreds of years
100s to 1,000s of years
millions to billions of years
days to eons
Volcanic eruptions can lead to _____ weather immediately but a ____ climate in the long run.
hot / warmer
cold / cooler
warmer / cooler
cooler / warmer
A species is defined as endangered when it
suffers from habitat loss
suffers from diseases or predators
when there are hazards to the life of the species
all of these
Species that is found in only one area. Such species are especially vulnerable to extinction. Ex: Kangaroo in Australia
endemic
pioneer
indicator
exotic
Greenhouses gases
absorb and reradiate heat to keep earth warm
can only be produced by burning coal
are a nonrenewable resource
are only produced naturally and cannot be produced by humans
