Characteristics of Life Answers

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1
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Which occurs when the body responds to the environment by maintaining a stable internal environment despite changing external conditions?

A
spontaneous generation
B
homeostasis
C
growth and development
D
reproduction
2
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Sweating when it is hot outside is an example of which characteristic of life?

A
responding to the environment
B
using energy
C
reproducing
D
growing and developing
3

Which term best describes an organism that can contain up to five levels of organization to carry out life functions?

A
multicellular
B
unicellular
C
abiotic
D
biotic
4

Which is biotic?

A
wind
B
iron gate
C
sunlight
D
leaf
5

Which list shows the levels of organization of an organism in hierarchical order from left to right, from the least complex to the most complex?

A
organism, organ, organ system, cell, tissue
B
organism, organ system, organ, tissue, cell
C
cell, tissue, organ system, organ, organism
D
cell, tissue, organ, organ system, organism
6

Which would best be described as abiotic?

A
water in a stream
B
fish in a stream
C
bacteria in the soil
D
roots in the soil
7

Which is biotic?

A
water
B
temperature
C
sapling
D
rocks
8

How were Redi’s and Pasteur’s experiments similar?

A
Both studied the growth of microbes in broth.
B
Both studied flies emerging from meat.
C
Both tested the idea of spontaneous generation.
D
Both tested whether pasteurization kills microorganisms.
9

When listing the levels of organization in organisms from least complex to most complex, which level is just below organs in complexity?

A
cell
B
organism
C
organ system
D
tissue
10

What was shown by both Redi’s and Pasteur’s experiments?

A
Living things only come from other living things.
B
Nonliving things can come from living things.
C
Nonliving things only come from other nonliving things.
D
Living things can come from nonliving things.
11

Which characteristic of life best describes the process of photosynthesis?

A
using energy
B
containing cells
C
reproducing
D
growing and developing
12

Which characteristic of life best describes the process of homeostasis?

A
responding to the environment
B
reproducing
C
growing and developing
D
using energy
13

Which term best describes the temperature and weather conditions of an organism’s environment?

A
biotic factors
B
abiotic factors
C
natural resources
D
natural habitat
14

Living organisms, such as trees and cows, share certain characteristics of life. Which statement describes a difference in one of the characteristics of life shared by trees and cows?

A
One of the organisms produces asexually, the other does not.
B
One of the organisms responds to the environment, the other does not.
C
One of the organisms gets energy directly from the sun, the other does not.
D
One of the organisms grows and changes, but the other does not.

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