Biology Chapter 1 Quiz: Exploring Life and Science
Choose the CORRECT order (1-5) of increasing complexity/organization.
(1) cells, (2) tissues, (3) organs, (4) organ systems, (5) organism
What characteristic is NOT shared by all living organisms?
They make their own energy.
Living organisms maintain a constant internal environment by sensing and responding to their internal conditions. This stable maintenance of internal conditions is known as
homeostasis.
Challenges facing scientists today include ______ .
All of these are challenges.
Which of the following is not a domain of life?
Animals
Domain Eukarya includes ______ (Select all that apply).
Animals, plants, protists, fungi
A scientific _________ must have a control group to compare with the test group.
Experiment
Science uses ___________ to continuously test ideas. Select all that apply.
Experimentation, evidence, beliefs
The human heart pumps blood throughout the blood vessels in the body. This is a scientific
Fact
An independent/experimental variable in a scientific experiment is the variable that is affected by the dependent/responding variable.
Fasle
Identify the dependent/responding variable in the following experiment. A scientist grew bacteria on gel in her lab. She wanted to find out if the bacteria would grow faster on gel A or gel B. She placed a few bacteria on gel A and a few on gel B. After 24 hours, she observed how many bacteria were present on each type of gel.
Growth of bacteria
Which of the following statements is true?
The scientific method or process can help people make informed medical and environmental decisions.
A researcher wanted to determine if consuming diet sodas causes diabetes. He conducted a study in which subjects were asked to recall how many diet sodas they drank each day, on average; the subjects' blood sugar levels were then measured. The average blood sugar levels were determined in the test subjects. Each group included an equal number of male and female participants and the groups were standardized for average weight and age. Which of these statements most accurately describes what is seen in the graph?
There appears to be a positive correlation between the number of diet sodas consumed each day and the average blood sugar levels measured in mmol/L. However, no definite cause-effect relationship has been established.
A species of butterflies gradually becomes darker in color over many generations; this is an example of which characteristic of living organisms?
They can evolve as a species.
The roots of a sunflower plant growing downwards while the shoot grows upwards and the flower turns towards the sun are examples of what characteristic of all living organisms?
They sense the environment and respond to it.
Is it important for scientists to communicate their results to fellow scientists?
Yes. The quality and accuracy of the scientific work can be enhanced by input, further review, and possibly even repetition by other scientists working in the same field.
In the hierarchy levels of life, the smallest level is the _______, and the largest level is the ______.
atom, biosphere
New medications undergo extensive human testing before receiving FDA approval. These tests represent an experiment and variations in the dosage given to participants represents the
independent/experimental variable.
DNA is one of the features common to all known forms of life;
it is the blueprint that guides the growth, development, behavior, and reproduction of all organisms.
A scientific hypothesis must be ________; if not, science cannot evaluate it.
testable