Question 1

Which of the following correctly lists the levels of biological organization from largest to smallest, as depicted in Figure 1.3?

Accepted Answer

Biosphere, Ecosystem, Community, Population, Organism, Organ, Tissue, Cell, Organelle, Molecule

Question 2

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

Accepted Answer

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

Question 3

According to Darwin's theory of natural selection, which of the following is NOT a necessary condition for evolution to occur?

Accepted Answer

All individuals in a population must be genetically identical.

Question 4

A scientist observes that a certain plant species grows taller in sunlight than in shade. She hypothesizes that sunlight increases plant height. Which of the following is the best example of a testable prediction based on her hypothesis?

Accepted Answer

If plants are grown in sunlight, then they will be taller than plants grown in shade after four weeks.

Question 5

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

Accepted Answer

The growth of the plants measured in height or mass

Question 6

Which of the following best explains why a scientific hypothesis can never be conclusively proven to be true?

Accepted Answer

There may always be alternative explanations that have not been tested.

Question 7

Which of the following is an example of quantitative data?

Accepted Answer

The average height of a group of plants is 15 cm.

Question 8

A student reads that magnesium sheets are used to prevent rusting of pipelines. He sets up an experiment with three test tubes: A) iron nail, B) iron nail wrapped with aluminum, C) iron nail wrapped with magnesium. What is the independent variable in this experiment?

Accepted Answer

The type of metal wrapped around the iron nail

Question 9

Which of the following questions CANNOT be addressed by scientific inquiry?

Accepted Answer

Does a supernatural being control the weather?

Question 10

In the experiment with iron nails and different metals, what is the control group?

Accepted Answer

The iron nail with no metal wrapping

Question 11

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

Accepted Answer

It provides a baseline for comparison to the experimental group.

Question 12

Which of the following is a correct statement about the three domains of life?

Accepted Answer

The three domains are Bacteria, Archaea, and Eukarya.

Question 13

A scientist is testing the effect of temperature on enzyme activity. She keeps the pH, substrate concentration, and enzyme concentration constant. What are these constant factors called?

Accepted Answer

Controlled variables

Question 14

Which of the following best illustrates 'descent with modification' as described by Darwin?

Accepted Answer

A population of finches develops different beak shapes over generations due to food availability.

Question 15

Which of the following is a key feature of the scientific process?

Accepted Answer

It involves making observations, forming hypotheses, and testing them.

Question 16

A researcher wants to test if a new drug reduces blood pressure. She gives the drug to one group and a placebo to another. What is the placebo group an example of?

Accepted Answer

A control group

Question 17

Which of the following best describes a scientific theory?

Accepted Answer

A broad explanation supported by a large body of evidence.

Question 18

If a hypothesis is falsifiable, what does this mean?

Accepted Answer

It can be proven wrong by evidence.

Question 19

Which of the following is an example of a qualitative observation?

Accepted Answer

The solution turned blue after the chemical was added.

Question 20

A student claims that 'God created all living things.' According to the scientific process, why can't this claim be tested scientifically?

Accepted Answer

It involves supernatural explanations, which are outside the bounds of science.

Introduction to Evolution and Foundations of Biology

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