01
True or false
1 point
True or false: A bacterium can be a complete organism even though it has no tissues, organs, or organ systems.
Free Practice Quiz Question List
1 Principles of Biological Organization Online Quiz Questions
Use this free practice quiz with 20 questions to review 1 Principles of Biological Organization, test your knowledge, and prepare for your next test or exam.
20 questions
02
True or false
1 point
True or false: Homeostasis means that an organism's internal conditions remain perfectly constant.
- A
True
- B
False
03
True or false
1 point
True or false: Positive feedback acts to reduce the change that triggered it.
- A
True
- B
False
04
Written response
1 point
In heart tissue, individual cells coordinate to produce a pumping action that the cells do not perform alone. What is this phenomenon called?
05
Written response
1 point
What do biologists call a proposed explanation that can be tested?
06
Fill in the blank
1 point
When body temperature rises, sweating helps release heat. This is an example of .
07
Fill in the blank
1 point
An individual organism does not during its lifetime; evolution occurs across generations of a population.
08
Choose one
1 point
Several populations of different species live and interact in the same area. Which level of biological organization do they form?
- A
A population
- B
A community
- C
An ecosystem
- D
An organ system
09
Choose one
1 point
Several organs coordinate to carry out related functions in an animal. What level of organization do these organs form together?
- A
A tissue
- B
An organ
- C
An organ system
- D
A population
10
Choose one
1 point
A rise in body temperature triggers responses that help release heat and reduce the temperature increase. Which process best describes this response?
- A
Negative feedback
- B
Positive feedback
- C
Emergence
- D
Evolution
11
Choose one
1 point
A biologist wants to assess whether light direction influences plant growth. Which approach best uses an experiment to investigate this question?
- A
Change the direction of light reaching plants and measure their growth
- B
Record plant growth without changing or tracking light conditions
- C
Decide that light caused the bending before collecting observations
- D
Measure light direction but not any plant response
12
Choose all
1 point
Which components are included in an ecosystem? Select all correct answers.
- A
Populations of different species living and interacting in an area
- B
Only the organisms of a single species
- C
Nonliving environmental components such as soil and water
- D
Only the organs within an individual organism
13
Choose all
1 point
Which practices are consistent with scientific inquiry in biology? Select all correct answers.
- A
Record results carefully and analyze them
- B
Communicate results so others can evaluate or repeat the work
- C
Keep the original explanation unchanged even when evidence challenges it
- D
Use a controlled experiment, field observations, or another suitable method
14
Open ended
1 point
Explain why the levels of biological organization do not all appear in every organism. Use a bacterium as an example.
15
Choose one
1 point
Several species live and interact in the same meadow. Which level of biological organization does this group represent?
- A
A population
- B
A community
- C
An organism
- D
A tissue
16
Choose one
1 point
A pond contains interacting populations of plants, animals, and microbes, along with water, soil, and air. Which level of organization includes all of these parts?
- A
A population, because it contains living things in one area
- B
A community, because it includes populations of different species
- C
An ecosystem, because it includes living communities and nonliving environmental components
- D
The biosphere, because it includes all regions of Earth where life exists
17
Written response
1 point
Individual heart muscle cells do not pump blood through the body on their own, but coordinated cells in heart tissue produce a pumping action. What term describes a function that arises from interactions among parts?
18
Choose one
1 point
When body temperature rises, sweating helps release heat and reduce the rise. Which process best describes this response?
- A
Negative feedback, because the response reduces the initial change
- B
Positive feedback, because the response amplifies the initial change
- C
Evolution, because an individual changes during its lifetime
- D
Emergence, because temperature stays perfectly constant
19
Written response
1 point
A population's inherited characteristics change over many generations. What biological process does this describe?
20
Choose one
1 point
A biologist proposes that light direction affects plant growth. Which statement is a prediction that could be tested?
- A
Light direction affects the way a plant grows.
- B
If light comes from one side, the plant will bend toward that side.
- C
A plant near a window is bending toward the window.
- D
The plant bent toward the light during the test.