Question 1

Which of the following best describes the concept of 'emergent properties' in the hierarchy of life?

Accepted Answer

Properties that arise at each new level of biological organization that are not present at the preceding level.

Question 2

A scientist observes that all animals she studies have cells. She then concludes that all animals have cells. What type of reasoning is she using?

Accepted Answer

Inductive reasoning

Question 3

Which of the following is an example of negative feedback in biological systems?

Accepted Answer

When the accumulation of a product slows down the process that produces it.

Question 4

Which of the following correctly lists the hierarchy of biological organization from smallest to largest?

Accepted Answer

Atom $$\rightarrow$$ Molecule $$\rightarrow$$ Organelle $$\rightarrow$$ Cell $$\rightarrow$$ Tissue $$\rightarrow$$ Organ $$\rightarrow$$ Organ system $$\rightarrow$$ Organism $$\rightarrow$$ Population $$\rightarrow$$ Community $$\rightarrow$$ Ecosystem $$\rightarrow$$ Biosphere

Question 5

Which of the following statements about ATP is correct?

Accepted Answer

ATP is the chemical energy that living organisms convert from food to power cellular processes.

Question 6

A population of bacteria in a hospital develops resistance to a disinfectant over time. Which biological concept does this best illustrate?

Accepted Answer

Natural selection

Question 7

Which of the following is NOT a property shared by all living organisms?

Accepted Answer

Ability to photosynthesize

Question 8

In a controlled experiment testing the effect of fertilizer on tomato plant growth, which of the following is the independent variable?

Accepted Answer

The type or amount of fertilizer used

Question 9

Which of the following best explains why energy flows in one direction through an ecosystem, while matter is recycled?

Accepted Answer

Energy is lost as heat at each trophic level, while matter is reused by decomposers and producers.

Question 10

Which of the following is an example of evolutionary adaptation?

Accepted Answer

Bats developing wings adapted for flight, allowing them to survive and reproduce.

Question 11

Which of the following statements about prokaryotic and eukaryotic cells is correct?

Accepted Answer

Eukaryotic cells have organelles, while prokaryotic cells do not.

Question 12

Which of the following best describes the flow of genetic information in a cell?

Accepted Answer

$$DNA \rightarrow RNA \rightarrow$$ Protein

Question 13

A researcher proposes that a certain fertilizer increases plant growth. She sets up an experiment with two groups: one with fertilizer and one without. What is the purpose of the group without fertilizer?

Accepted Answer

It serves as the control group for comparison.

Question 14

Which of the following is an example of a positive feedback mechanism?

Accepted Answer

As more product accumulates, the process speeds up and produces even more product.

Question 15

Which of the following is the correct order of the scientific method as used in hypothesis-based science?

Accepted Answer

Observation $$\rightarrow$$ Hypothesis $$\rightarrow$$ Prediction $$\rightarrow$$ Experiment $$\rightarrow$$ Result $$\rightarrow$$ Conclusion

Question 16

Which of the following is a real-world example of natural selection?

Accepted Answer

Bacteria in hospitals developing resistance to antibiotics after repeated exposure.

Question 17

Which of the following best explains why evolution is considered the core theme of biology?

Accepted Answer

It explains both the unity and diversity of life by showing how species change over time from common ancestors.

Question 18

Which of the following is an example of a community in an ecosystem?

Accepted Answer

All the different species of frogs, fish, and plants living in a pond.

Question 19

Which of the following statements about the flow of energy and matter in an ecosystem is correct?

Accepted Answer

Energy flows from sunlight to producers to consumers to decomposers, and is eventually lost as heat.

Question 20

Which of the following is the smallest unit of life that can perform all the activities required for life?

Accepted Answer

Cell

General Biology: Core Concepts, Hierarchies, and Scientific Method

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