Question 1

Which of the following is NOT a major property of life as described in the study materials?

Accepted Answer

Movement

Question 2

A scientist observes that a certain plant species grows faster when exposed to more sunlight. She hypothesizes: 'If plants are given more sunlight, then they will grow taller.' In an experiment to test this, what is the independent variable?

Accepted Answer

Amount of sunlight

Question 3

Which of the following best distinguishes a eukaryotic cell from a prokaryotic cell?

Accepted Answer

Presence of a nucleus

Question 4

Which of the following is an example of the 'tissue' level of biological organization?

Accepted Answer

A group of similar cells forming a layer of skin

Question 5

In the context of the scientific method, which statement is a good hypothesis?

Accepted Answer

If the car won’t start because the battery is dead, then replacing the battery will allow it to start.

Question 6

Which of the following best describes homeostasis?

Accepted Answer

The ability of an organism to maintain a relatively stable internal environment

Question 7

Which of the following is the dependent variable in an experiment testing the hypothesis: 'The older someone’s age, the higher their blood pressure'?

Accepted Answer

Blood pressure

Question 8

Which of the following statements about DNA is correct?

Accepted Answer

DNA is a double-stranded molecule containing adenine, thymine, cytosine, and guanine.

Question 9

Which of the following best describes a scientific theory?

Accepted Answer

A well-supported explanation of how or why phenomena occur, based on many hypotheses.

Question 10

Which of the following is an example of an autotroph?

Accepted Answer

A photosynthetic plant

Question 11

In Redi’s experiment testing spontaneous generation, what was the independent variable?

Accepted Answer

Whether the jar was sealed or unsealed

Question 12

Which of the following best describes the difference between a scientific law and a scientific theory?

Accepted Answer

A law describes what will happen; a theory explains why it happens.

Question 13

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

Accepted Answer

Atom, molecule, organelle, cell, tissue, organ, organ system, organism

Question 14

Which of the following is a characteristic of all prokaryotic cells?

Accepted Answer

They lack a nucleus.

Question 15

A group of similar organs working together to perform a function is called a(n):

Accepted Answer

Organ system

Question 16

Which of the following is an example of a controlled factor in a scientific experiment?

Accepted Answer

Keeping the temperature constant for all groups

Question 17

Which of the following is NOT a requirement for a hypothesis?

Accepted Answer

It must be an opinion.

Question 18

Which of the following best describes metabolism?

Accepted Answer

All the chemical reactions occurring in a cell or organism

Question 19

Which of the following is an example of a population?

Accepted Answer

All the deer of the same species living in a forest

Question 20

Which of the following best describes the role of receptors in cells?

Accepted Answer

They detect stimuli and help the cell respond to changes in the environment.

Introduction to Human Biology: Properties and Organization of Life & The Scientific Method

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