Question 1

Which of the following is NOT considered a characteristic of life according to the study materials?

Accepted Answer

Ability to photosynthesize

Question 2

Homeostasis is best defined as:

Accepted Answer

The tendency of life to try and maintain the structure and regulate the internal environment

Question 3

Which of the following best describes the process of metabolism?

Accepted Answer

The transformation of raw materials and energy into forms needed for maintenance, growth, and reproduction

Question 4

A scientist observes that rocks sink in water, but wood floats. She hypothesizes that objects with greater density than water will sink. Which step of the scientific method is she performing?

Accepted Answer

Forming a hypothesis

Question 5

Which of the following is the correct order of biological organization from smallest to largest?

Accepted Answer

Atom, molecule, cell, tissue, organ

Question 6

Which statement about domains and kingdoms is TRUE?

Accepted Answer

Domains are the largest organizational groups, subdivided into kingdoms

Question 7

Binomial nomenclature assigns each species a scientific name consisting of:

Accepted Answer

Genus and species

Question 8

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

Accepted Answer

Supernatural forces can explain natural events

Question 9

If a population of organisms adapts to a changing environment over several generations, this is an example of:

Accepted Answer

Evolution

Question 10

Which of the following best explains why the plant vs. animal classification system was eventually replaced?

Accepted Answer

It did not account for evolutionary relationships and microscopic organisms

Question 11

A scientific theory is:

Accepted Answer

An explanation of natural events based on many observations and/or experiments

Question 12

Which of the following is an example of an autotroph?

Accepted Answer

A green plant performing photosynthesis

Question 13

Which process allows organisms to maintain their internal environment despite changes in the external environment?

Accepted Answer

Homeostasis

Question 14

The genetic information for building an offspring is stored in:

Accepted Answer

DNA of the parent(s)

Question 15

Which of the following is a correct example of a scientific name using binomial nomenclature?

Accepted Answer

Homo sapiens

Question 16

Which of the following equations correctly represents the process of photosynthesis?

Accepted Answer

$$6CO_2 + 6H_2O \rightarrow C_6H_{12}O_6$ + 6O_2$$

Question 17

Which of the following best describes natural selection?

Accepted Answer

The survival and reproduction of the fittest members of the population

Question 18

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

Accepted Answer

Ignoring data that does not support your hypothesis

Question 19

Which of the following is a heterotroph?

Accepted Answer

A fungus decomposing organic matter

Question 20

If a scientist drops a 25-pound log, 10 pounds of ice, and her best friend into water to test which sinks, which step of the scientific method is she performing?

Accepted Answer

Conducting an experiment

Introduction to Life on Earth: Characteristics, Classification, and the Scientific Method

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