Question

matching
in the space provided, write the letter of the term or phrase that best matches the
description.

1. an individual living thing

a. ecosystem p. 99
b. population p. 101
c. natural selection p. 103
d. organism p. 101
e. resistance p. 109
f. abiotic factor p. 100
g. evolution p. 103
h. species p. 101
i. community p. 102
j. biotic factor p. 100

1. a group of various species that live in the

same place and interact with each other

1. living or once living part of an ecosystem
2. unequal survival and reproduction that

results from the presence or absence of
particular traits

1. all the organisms living in an area and

their physical environment

1. change in the genetic characteristics

of a population from one generation to
the next

1. all the members of the same species that

live in the same place at the same time

1. nonliving part of an ecosystem
2. ability of one or more organisms to

tolerate a particular chemical designed
to kill it

1. group of organisms that are closely

related and that can mate to produce
fertile offspring
multiple choice
in the space provided, write the letter of the term or phrase that best completes
each statement or best answers each question.

1. what kind of habitat does a red backed salamander need to survive?

a. damp forest floor
b. sunny top of a tree
c. dry forest floor
d. sunny desert rock

Explanation:

1. An individual living thing is called an organism.
2. A group of various species that live in the same place and interact with each other is a community.
3. The living or once - living part of an ecosystem is a biotic factor.
4. Unequal survival and reproduction that results from the presence or absence of particular traits is natural selection.
5. All the organisms living in an area and their physical environment is an ecosystem.
6. Change in the genetic characteristics of a population from one generation to the next is evolution.
7. All the members of the same species that live in the same place at the same time is a population.
8. The nonliving part of an ecosystem is an abiotic factor.
9. The ability of one or more organisms to tolerate a particular chemical designed to kill it is resistance.
10. A group of organisms that are closely related and that can mate to produce fertile offspring is a species.

For question 11, red - backed salamanders are amphibians. Amphibians generally need a moist environment. A damp forest floor provides the moisture they need for respiration (through their skin) and to prevent drying out. Sunny areas (like the top of a tree or a desert rock) and dry areas (dry forest floor) are not suitable as they lack the necessary moisture.

Answer:

1. d
2. i
3. j
4. c
5. a
6. g
7. b
8. f
9. e
10. h
11. a