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Biology Concepts Overview
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Biology Concepts Overview
Biology Concepts Overview
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1
Question
grass, fungi, grasshoppers The food web in a prairie ecosystem includes grasshoppers which feed on grasses. When the grasshoppers die, their dead bodies are broken down with the help of fungi. List in order the producer, decomposer, and consumer in this system.
Answer
producer, decomposer, and consumer
2
Question
Using their lateral line organ, fish can perceive and react to changes in water currents caused by prey and predators. This is an example of
Answer
response to the environment.
3
Question
Which of the following can be categorized as prokaryotic
Answer
domain Bacteria
4
Question
Which kingdom includes both unicellular and multicellular organisms?
Answer
Protista
5
Question
In science, a theory
Answer
encompasses many hypotheses.
6
Question
Which of the following is considered the unifying concept of biology because it explains almost every aspect of life, including the diversity of life on this planet?
Answer
evolution
7
Question
All the chemical reactions that occur in a cell are collectively called
Answer
metabolism
8
Question
Which of the following correctly lists the levels of biological organization from most complex to simplest?
Answer
organism, organ system, organs, tissues, cells
9
Question
The process of leads to organisms that are adapted to that environment.
Answer
natural selection
10
Question
In general, evolutionary processes lead to organisms that
Answer
function well in a given environment
11
Question
Which of the following statements inaccurately describes biodiversity?
Answer
So far, approximately 6 million species have been identified and named.
12
Question
Which of the following levels of biological organization is correctly matched with an example?
Answer
a tropical rain forest with rain, sunlight, trees, insects, and animals - ecosystem
13
Question
The purpose of a control group in an experiment is
Answer
for comparison to the experimental group
14
Question
is the application of scientific knowledge to human interests.
Answer
Technology
15
Question
Which of the following is the best explanation of how the goal of science differs from the goal of technology?
Answer
The goal of science is to answer questions and increase knowledge while the goal of technology is to utilize science to find solutions to practical problems.
16
Question
Cells need buffering agents in order to their internal environment.
Answer
minimize the changes in pH of
17
Question
An ionic bond forms when
Answer
a positively charged ion is attracted to a negatively charged ion.
18
Question
chemical bonds involve
Answer
the giving, taking, or sharing of electrons
19
Question
The subatomic particles that are found within the nucleus of an atom are the
Answer
neutrons and protons.
20
Question
What do lemons, tomatoes, and coffee all have in common chemically?
Answer
They all release H ions in solution, making them acids
21
Question
7.0 water contains an equal number of H ions and OH- ions
Answer
76 protons and 76 electrons
22
Question
When water changes from a liquid to a gas
Answer
hydrogen bonds are broken between neighboring water molecules.
23
Question
Isotopes of
Answer
their atomic mass.
24
Question
After drinking a great deal of coffee pH 5, a human's blood buffering system would need to ______ as the coffee was digested to lower the level of acid present in the blood stream.
Answer
take up H
25
Question
A covalent bond involves the sharing of ______
Answer
pairs of electrons
26
Question
The number of neutrons present in the nucleus of an average atom of any given element is best estimated by ______
Answer
subtracting the number of protons from the mass number.
27
Question
The type of bond that would form from the transfer of an electron from one atom to another is an ______ bond.
Answer
ionic
28
Question
Sugar dissolves in coffee because ______
Answer
water is a good solvent.
29
Question
What is the function of a peptide bond?
Answer
joins an amino acid to an adjacent amino acid
30
Question
Which nitrogen-containing base is found in RNA but not in DNA?
Answer
uracil