Enriched Science Chapter 8 Question Preview (ID: 38453)


Ch 8. TEACHERS: click here for quick copy question ID numbers.

Overpopulation of one species affects the other species of the community in what way?
a) The populations of other species go up.
b) The populations of other species become unpredictable.
c) The populations of other species go down.
d) There is no effect on populations of other species.

What have humans been able to do that other species cannot?
a) return from extinction
b) experience exponential growth
c) reach biotic potential
d) increase the carrying capacity of their environment

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) a limiting factor
b) ecosystem
c) population density
d) all of the above

As a population grows, this means _____.
a) less resources for other species
b) an equal growth in all species
c) more resources for other species
d) no change in available resources for other species

An organism captures light energy from the sun to make its own food. This organism is which of the following?
a) consumer
b) predator
c) prey
d) producer

Which is a cause of human population decrease?
a) advances in agriculture
b) medical care
c) damage from natural disasters
d) sewage treatment

How does better transportation lead to human population growth?
a) Disease can spread more quickly from one area to another as people travel more efficiently.
b) Resources from an area with plenty to spare can more easily be taken to areas of scarcity.
c) Better transportation makes it easier to destroy tropical forests.
d) It doesn’t.

Which of the following is NOT part of Earth’s biosphere?
a) Pacific Ocean
b) Rocky Mountains
c) the Moon
d) Cuba

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) niche
b) population
c) ecosystem
d) community

During exponential growth, which of the following is true?
a) The larger a population gets, the slower it grows.
b) The larger a population gets, the faster it grows.
c) The size of the population has no effect on the growth of the population.
d) The population rapidly shrinks down to nothing.

Which is in order from highest to lowest population?
a) extinct, endangered, threatened
b) endangered, threatened, extinct
c) extinct, threatened, endangered
d) threatened, endangered, extinct

Some populations have cooperative relationships. This is where _____.
a) members of the same species compete for resources
b) members of different species compete for resources
c) members of the same species work together for survival
d) members of different species work together for survival

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