Question 1

Which of the following best describes homeostasis in living organisms?

Accepted Answer

The tendency to maintain and regulate internal structure and environment.

Question 2

Which level of biological organization is present only in multicellular eukaryotes?

Accepted Answer

Organs

Question 3

A scientist observes that rocks sink in water, metal bars sink in water, and raybans sink in water when dropped. What is the next step in the scientific method?

Accepted Answer

Form a hypothesis

Question 4

Which of the following is NOT a characteristic of life?

Accepted Answer

Ability to remain unchanged in any environment

Question 5

In the process of evolution, what is the role of natural selection?

Accepted Answer

It allows the fittest individuals to survive and reproduce, passing their genes to future generations.

Question 6

Which domain includes organisms with eukaryotic cells?

Accepted Answer

Eukarya

Question 7

Which of the following is the correct format for a scientific name according to binomial nomenclature?

Accepted Answer

Homo sapiens

Question 8

Which of the following statements about metabolism is correct?

Accepted Answer

Metabolism changes raw material and energy into forms needed for maintenance, growth, and reproduction.

Question 9

A population of organisms faces a sudden environmental change. According to evolutionary theory, what is most likely to happen?

Accepted Answer

The population may change through adaptation, with the fittest surviving and reproducing.

Question 10

Which of the following best explains why scientific theories are considered reliable?

Accepted Answer

They are explanations of natural events based on many observations and/or experiments.

Question 11

Which of the following is the correct order of increasing complexity in biological organization?

Accepted Answer

Atoms $$\rightarrow$$ Molecules $$\rightarrow$$ Organelles $$\rightarrow$$ Cells

Question 12

Which of the following is an example of an autotroph?

Accepted Answer

A green plant using sunlight for photosynthesis

Question 13

Which principle is NOT part of the scientific method as described in the study materials?

Accepted Answer

Natural laws change with time and distance

Question 14

Which of the following best describes the process of adaptation?

Accepted Answer

A change in a population over generations that increases survival and reproduction

Question 15

Which of the following is true about the organization of living things?

Accepted Answer

All living things are organized into domains based on evolutionary relationships.

Question 16

Which of the following is a correct statement about reproduction in living organisms?

Accepted Answer

Genetic information for offspring is stored in DNA.

Question 17

A scientist drops a 2-pound log, 10 pounds of ice, and a metal bar into water to test their hypothesis about sinking. What is the scientist doing?

Accepted Answer

Conducting experiments

Question 18

Which of the following is the best example of a scientific theory?

Accepted Answer

An explanation of gravity based on repeated experiments and observations

Question 19

Which of the following is NOT a step in the scientific method?

Accepted Answer

Develop a scientific theory before experimentation

Question 20

Which of the following best explains why domains are subdivided into kingdoms?

Accepted Answer

To group organisms based on evolutionary relationships and more specific characteristics.

Introduction to Life on Earth: Characteristics, Organization, and Scientific Method

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