Question 1

Which of the following statements is NOT a reason why humans are the most difficult organism to study?
A) For ethical reasons,an ideal experimental design may not be allowed to be performed with human subjects.
B) Some types of double-blind experiments cannot be performed with human subjects.
C) Long-term (longitudinal)studies may involve inaccurate reporting by the participants.
D) Longitudinal studies of human subjects can be very expensive.

Accepted Answer

The answer of Which of the following statements is NOT...

Question 2

To survive,living organisms must be able to sense and respond to both their internal and external ________.

Accepted Answer

The answer of To survive,living organisms must be able to...

Question 3

New medications undergo extensive human testing before receiving FDA approval.These tests represent an experiment,and the variations in the dosage given to test participants represents the ________.

Accepted Answer

The answer of New medications undergo extensive human testing before...

Question 4

Which of the following statements about the biological hierarchy is true?
A) Ecosystems are composed of one or more biomes.
B) Communities are composed of one or more ecosystems.
C) The biosphere includes all life forms and the places where they live.
D) The biosphere is an intermediate classification that falls between ecosystems and biomes.

Accepted Answer

The biosphere encompasses all ecosystems and living organisms on Earth, along with the physical environments in which they reside. This includes the land, oceans, atmosphere, and other areas where life exists, making it the broadest level of biological organization.

Question 5

The scientific method begins with ________.

Accepted Answer

The answer of The scientific method begins with ________....

Question 6

The discovery that bacteria living in Mono Lake may have replaced the phosphorus in certain biomolecules with ________ has challenged long-held assumptions about the chemical nature of life.

Accepted Answer

The answer of The discovery that bacteria living in Mono...

Question 7

Which of the following features is LEAST likely to be used to define a biome?
A) shared physical characteristics
B) the presence or absence of humans
C) a distinctive community of organisms
D) the climate

Accepted Answer

The presence or absence of humans is not a defining characteristic of a biome, as biomes are natural areas with distinct physical and biological features. The other options (A, C, and D) are commonly used to define biomes based on shared physical characteristics, distinct communities of organisms, and particular climates.

Question 8

A group of organisms can develop new characteristics over time through the process of ________.

Accepted Answer

The answer of A group of organisms can develop new...

Question 9

Microbiologists quickly responded to the paper by Dr.Wolfe-Simon in which she claimed to have discovered bacteria that were using arsenic to construct their DNA.One of the most challenging criticisms was that she and her colleagues
A) were unable to account for arsenic's toxicity to other organisms.
B) published the paper before going through the conventional peer review process.
C) had an inadequate protocol for eliminating all phosphorus from the test tubes that contained the bacteria.
D) lacked comparative information about closely related bacteria within the Halomonadaceae family.

Accepted Answer

Critics pointed out that the protocol used to eliminate all phosphorus from the test tubes containing the bacteria was inadequate, as it did not include a thorough analysis of the purified DNA. As a result, some argued that the bacteria may have still been using trace amounts of phosphorus, making the claims of the paper unreliable.

Question 10

The directions for the specific genetic characteristics in all living things are functionally organized into discrete segments called genes;these genes are composed of ________.

Accepted Answer

The answer of The directions for the specific genetic characteristics...

Question 11

Using a process called photosynthesis,plants make energy-rich substances by using the energy contained in ________.

Accepted Answer

The answer of Using a process called photosynthesis,plants make energy-rich...

Question 12

The observation that polar ice floes are thinning or melting much earlier each spring than they did 20 years ago is an example of a scientific ________.

Accepted Answer

The answer of The observation that polar ice floes are...

Question 13

Experimentation is the primary means that verifies or refutes the ________ made by a hypothesis.

Accepted Answer

The answer of Experimentation is the primary means that verifies...

Question 14

In the scientific method,observations are most often followed by ________ and then ________.

Accepted Answer

The answer of In the scientific method,observations are most often...

Question 15

Scientists can propose testable predictions after first developing a(n)________.

Accepted Answer

The answer of Scientists can propose testable predictions after first...

Question 16

Biology is the scientific study of ________.

Accepted Answer

The answer of Biology is the scientific study of ________....

Question 17

When compared with natural systems,a college campus-including its facilities-is most similar to a(n)
A) ecosystem.
B) community.
C) biome.
D) population.

Accepted Answer

A college campus, including its facilities, functions similarly to an ecosystem because it comprises both living (students, staff, flora, fauna) and non-living components (buildings, infrastructure) interacting as a system.

Question 18

Plants and animals need a variety of resources to carry out and maintain life processes;the most important of these resources is ________.

Accepted Answer

The answer of Plants and animals need a variety of...

Question 19

The genetic material used for reproduction by organisms that are conventionally considered to be living is ________.

Accepted Answer

The answer of The genetic material used for reproduction by...

Question 20

Which of the following ecological features would NOT be considered a component of an ecosystem?
A) an individual
B) a community
C) a population
D) a biome

Accepted Answer

A biome is a large area characterized by its vegetation, soil, climate, and wildlife, encompassing multiple ecosystems, rather than a component within an individual ecosystem. Components of an ecosystem typically include individuals, populations, and communities.

Quiz 1: The Nature of Science and the Characteristics of Life

Which of the following statements is NOT a reason why humans are the most difficult organism to study?

To survive,living organisms must be able to sense and respond to both their internal and external ________.

New medications undergo extensive human testing before receiving FDA approval.These tests represent an experiment,and the variations in the dosage given to test participants represents the ________.

Which of the following statements about the biological hierarchy is true?

The scientific method begins with ________.

The discovery that bacteria living in Mono Lake may have replaced the phosphorus in certain biomolecules with ________ has challenged long-held assumptions about the chemical nature of life.

Which of the following features is LEAST likely to be used to define a biome?

A group of organisms can develop new characteristics over time through the process of ________.

Microbiologists quickly responded to the paper by Dr.Wolfe-Simon in which she claimed to have discovered bacteria that were using arsenic to construct their DNA.One of the most challenging criticisms was that she and her colleagues