SCI 200--Practice Milestone 2 Questions
and Answers 100% Correct
Which characteristic is representative of an exponential population growth model?
Produces an S-shaped curve
Shows the effect of limiting factors
Refl
...
SCI 200--Practice Milestone 2 Questions
and Answers 100% Correct
Which characteristic is representative of an exponential population growth model?
Produces an S-shaped curve
Shows the effect of limiting factors
Reflects a population's carrying capacity
Reflects growth in an ideal situation ✔✔Reflects growth in an ideal situation
Which statement prizes species for their intrinsic value, rather than for their ecosystem services?
Bees are valuable because they pollinate many foods that humans eat.
This lake should be protected because it attracts thousands of tourists every year.
Redwoods must be preserved because they inspire awe.
The cheetah should be protected because it is the fastest land animal in the world. ✔✔The cheetah
should be protected because it is the fastest land animal in the world.
Choose the statement below that correctly explains the nitrogen fixation process.
Fertilizers are needed to fix nitrogen so it is usable; they allow the nitrogen to be absorbed by
plants and passed on to the animals that eat them.
Micro-organisms in the roots of certain plants take nitrogen from the air and pass it on to the
animals that use it to build DNA, proteins and muscle.
Nitrogen is found in DNA and amino acids, which are released through animal urination and
absorbed by bacteria in the soil.
When animals die, nitrogen is formed by decomposers in the soil; bacteria attach themselves to
plant roots and release the nitrogen into the atmosphere. ✔✔Micro-organisms in the roots of
certain plants take nitrogen from the air and pass it on to the animals that use it to build DNA,
proteins and muscle.
Which statement accurately describes the "estuary" biome?
Tends to have low levels of biodiversity
Can be hot or cold, but always very dry
Most grazing animals live here
Freshwater and saltwater mix here ✔✔Freshwater and saltwater mix here
Select the example of an invasive species.
Introduced zebra mussels disrupt the food chain by eating plankton that is food for many fish
The domestic cat came out of Egypt thousands of years ago
The koala is only found in Australia
White-tailed deer thrive in a forest with a wolf population ✔✔Introduced zebra mussels disrupt
the food chain by eating plankton that is food for many fish
There are many challenges to protecting endangered species, including identifying a species in
danger in time to reverse the threat against it.
Select a possible solution to the environmental issue of protecting endangered species from the
options below.
Establish nature preserve
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