Post Class Quiz 2

Question 1

The process of peer-review helps science to progress by

Answer 1

All of the above
-sharing data and conclusions from experiments with the scientific community
-reviewers determine the merit of a scientist’s work for publication
- publication of peer-reviewed literature

Question 2

Biology is

Answer 2

the study of living organisms and their interactions with one another and their environments

Question 3

The smallest unit of biological structure that meets the functional requirements of “living” is the ____.

Answer 3

cell

Question 4

If you want to test a particular variable, you should try to keep all of the other variables the same (as much as possible) for both the control group and the experimental group.

Answer 4

true

Question 5

Scientists can publish anything they want in an official scientific journal without any oversight or approval.

Answer 5

False

Question 6

When conducting a scientific experiment, which of the following is changed or manipulated by the scientist(s)?

Answer 6

variable

Question 7

A logical statement that can be made based on evidence that one has gathered is called a(n) __________________________.

Answer 7

inference

Question 8

You wish to determine whether creatine and/or fish oil improve muscular recovery. You sort a population of volunteers into four groups. One receives creatine, one receives fish oil, one receives both creatine and fish oil, and one receives a placebo that contains neither creatine nor fish oil. All four groups then perform a series of exercises and muscle recovery is assessed the following day.

Which group(s) is/are the experimental group(s)? Select all that apply

Answer 8

-the group receiving fish oil
- the group receiving both creatine and fish oil
-the group receiving creatine

Question 9

A scientist is trying to determine whether different colors of light produce more or less plant growth than regular sunlight. She starts four cultures of plants and grows them either under regular sunlight, blue light, yellow light, or red light.

Which group(s) is/are the experimental group? Select all that apply.

Answer 9

green light
yellow light
blue light

Question 10

An idea in science that is narrow in scope, is reasonable and testable, and serves as a potential explanation for an observed natural phenomenon is known as a(n) _________.

Answer 10

hypothesis

Question 11

The concept of evolution by natural selection is one that has been tested numerous times and shown to explain a wide variety of natural phenomena. It also has predictive power, meaning that it can explain many new phenomena that we observe. Based on this description, evolution is what type of scientific concept?

Answer 11

theory