Question 1

Which of the following best describes the main difference between eukaryotic and prokaryotic cells?

Accepted Answer

Eukaryotic cells have membrane-bound organelles, while prokaryotic cells do not.

Question 2

Which kingdom is characterized by organisms that absorb nutrients and act as decomposers?

Accepted Answer

Fungi

Question 3

During photosynthesis, plants convert organic molecules into sugar. Which equation best represents this process?

Accepted Answer

$$6 \mathrm{CO}_2 + 6 \mathrm{H}_2\mathrm{O} \rightarrow \mathrm{C}_6\mathrm{H}_{12}\mathrm{O}_6 + 6 \mathrm{O}_2$$

Question 4

Which of the following is an example of a hypothesis?

Accepted Answer

"If mice have darker fur, then they will survive better in dark habitats."

Question 5

In a scientific experiment, which variable is manipulated by the researcher?

Accepted Answer

Independent variable

Question 6

A scientist observes that mice in Florida have different fur colors depending on their habitat. She hypothesizes that fur color provides camouflage. What is the next step in the scientific method?

Accepted Answer

Design an experiment to test if fur color affects predation rates.

Question 7

Which reasoning process involves starting with specific observations and forming a general conclusion?

Accepted Answer

Inductive reasoning

Question 8

Which of the following best describes a control group in an experiment?

Accepted Answer

A group that is exposed to all conditions except the variable being tested.

Question 9

Why is it important to have both independent and dependent variables in an experiment?

Accepted Answer

To determine if changes in the independent variable cause changes in the dependent variable.

Question 10

Which of the following is a plausible prediction based on the hypothesis that mouse fur color provides camouflage?

Accepted Answer

Mice with fur color matching their habitat will have lower predation rates.

Question 11

Which process is described as starting with a general principle and applying it to specific cases?

Accepted Answer

Deductive reasoning

Question 12

A scientist wants to test the effect of light on photosynthesis rate in plants. Which of the following is the dependent variable?

Accepted Answer

Rate of photosynthesis measured

Question 13

Which of the following statements about scientific theories is correct?

Accepted Answer

A scientific theory is supported by a large body of evidence and explains a wide range of phenomena.

Question 14

Which of the following is an example of a dependent variable in a study on camouflage in mice?

Accepted Answer

The number of mice eaten by predators

Question 15

Which of the following best describes the role of decomposers in an ecosystem?

Accepted Answer

They break down dead organic matter and recycle nutrients.

Question 16

Which of the following is a correct statement about homologous structures?

Accepted Answer

They are structures that share a common evolutionary origin but may have different functions.

Question 17

A scientist uses the following steps: observation, hypothesis, experiment, data analysis, and conclusion. Which process is she following?

Accepted Answer

The scientific method

Question 18

Which of the following is NOT a characteristic of the Animalia kingdom?

Accepted Answer

Members perform photosynthesis.

Question 19

Which of the following best explains why scientists use control groups in experiments?

Accepted Answer

To ensure that the results are due to the independent variable and not other factors.

Question 20

Which of the following is the correct order of steps in the scientific method?

Accepted Answer

Observation, hypothesis, experiment, data analysis, conclusion

General Biology: Eukaryotes, Scientific Method, and Experimental Design

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