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Enriched Science Chapter 8
Test Description: Ch 8
Instructions: Answer all questions to get your test result.
1) Overpopulation of one species affects the other species of the community in what way?
A
The populations of other species go down.
B
The populations of other species go up.
C
The populations of other species become unpredictable.
D
There is no effect on populations of other species.
2) What have humans been able to do that other species cannot?
A
return from extinction
B
reach biotic potential
C
experience exponential growth
D
increase the carrying capacity of their environment
3) Jasper finds an old bag of flour. It has bugs in it. In one cup of flour he finds 11 bugs. Eleven bugs per cup is an example of which of the following?
A
all of the above
B
ecosystem
C
population density
D
a limiting factor
4) As a population grows, this means _____.
A
an equal growth in all species
B
no change in available resources for other species
C
more resources for other species
D
less resources for other species
5) An organism captures light energy from the sun to make its own food. This organism is which of the following?
A
consumer
B
prey
C
predator
D
producer
6) Which is a cause of human population decrease?
A
sewage treatment
B
advances in agriculture
C
damage from natural disasters
D
medical care
7) How does better transportation lead to human population growth?
A
It doesn’t.
B
Better transportation makes it easier to destroy tropical forests.
C
Disease can spread more quickly from one area to another as people travel more efficiently.
D
Resources from an area with plenty to spare can more easily be taken to areas of scarcity.
8) Which of the following is NOT part of Earth’s biosphere?
A
the Moon
B
Rocky Mountains
C
Pacific Ocean
D
Cuba
9) Hannah sits on the edge of her little brother’s sandbox. She counts 8 worms and 15 pill bugs. In one corner there is just a little bit of grass growing. The worms make up a _____.
A
ecosystem
B
population
C
niche
D
community
10) During exponential growth, which of the following is true?
A
The population rapidly shrinks down to nothing.
B
The size of the population has no effect on the growth of the population.
C
The larger a population gets, the slower it grows.
D
The larger a population gets, the faster it grows.
11) Which is in order from highest to lowest population?
A
endangered, threatened, extinct
B
threatened, endangered, extinct
C
extinct, endangered, threatened
D
extinct, threatened, endangered
12) Some populations have cooperative relationships. This is where _____.
A
members of the same species work together for survival
B
members of the same species compete for resources
C
members of different species work together for survival
D
members of different species compete for resources
*select an answer for all questions
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