Pre Class 2 Flashcards
The process of peer-review helps science to progress by
All are correct:
-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
Biology is
the study of living organisms and their interactions with one another and their environments
The smallest unit of biological structure that meets the functional requirements of “living” is the ____.
cell
T or F
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.
T
Scientists can publish anything they want in an official scientific journal without any oversight or approval.
T or F
F
When conducting a scientific experiment, which of the following is changed or manipulated by the scientist(s)?
variable
A logical statement that can be made based on evidence that one has gathered is called a(n) __________________________.
inference
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
the group receiving fish oil
the group receiving both creatine and fish oil
the group receiving creatine
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.
green light
yellow light
blue light
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) _________.
hypothesis
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?
theory
