Question 1

Which of the following best illustrates the concept of emergent properties in biological systems?

Accepted Answer

A functioning heart that can pump blood, which is only possible when all its tissues and cells are organized together.

Question 2

Which of the following statements about the hierarchy of biological organization is correct?

Accepted Answer

Cells are the smallest unit of life that can perform all activities required for life.

Question 3

A scientist is studying the effect of a new fertilizer on plant growth. She sets up two groups: one receives the fertilizer, and the other does not. What is the independent variable in this experiment?

Accepted Answer

The type of fertilizer used.

Question 4

Which of the following best describes the process of gene expression?

Accepted Answer

The conversion of information from a gene to a functional protein.

Question 5

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

Accepted Answer

The secretion of insulin in response to high blood glucose, which lowers blood glucose levels.

Question 6

Which of the following is NOT a unifying theme of biology as described in the study materials?

Accepted Answer

Gravity

Question 7

Which of the following best explains why prokaryotic cells are generally smaller and simpler than eukaryotic cells?

Accepted Answer

Prokaryotic cells lack a nucleus and other membrane-bound organelles.

Question 8

Which of the following is the correct order of biological organization from smallest to largest?

Accepted Answer

Organelle, cell, tissue, organ, organism

Question 9

A population of lizards is observed to have decreased activity and foraging time due to increased environmental temperatures. Which concept does this scenario best illustrate?

Accepted Answer

The impact of environmental change on species adaptation and survival.

Question 10

Which of the following best describes the relationship between science and technology?

Accepted Answer

Technology applies scientific knowledge for a specific purpose, while science seeks to understand natural phenomena.

Question 11

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

Accepted Answer

Eukarya includes animals, plants, fungi, and protists.

Question 12

Which of the following is an example of a hypothesis that is NOT testable by scientific methods?

Accepted Answer

Ghosts are responsible for moving objects in a room.

Question 13

Which of the following best describes Darwin's theory of natural selection?

Accepted Answer

Individuals with traits best suited to their environment are more likely to survive and reproduce, leading to adaptation.

Question 14

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

Accepted Answer

The release of oxytocin during childbirth, which intensifies uterine contractions.

Question 15

Which of the following best explains why the genetic code is considered universal among living organisms?

Accepted Answer

The same codons specify the same amino acids in nearly all organisms.

Question 16

A researcher collects numerical data on the growth rate of bacteria at different temperatures. This type of data is best described as:

Accepted Answer

Quantitative data

Question 17

Which of the following best describes the flow of energy and cycling of matter in an ecosystem?

Accepted Answer

Energy flows through an ecosystem, usually entering as sunlight and exiting as heat, while matter cycles within the ecosystem.

Question 18

Which of the following is an example of an emergent property that arises at the level of the community?

Accepted Answer

Interactions between different species, such as predation and symbiosis.

Question 19

Which of the following best describes the difference between a theory and a hypothesis in science?

Accepted Answer

A hypothesis is a specific, testable statement, while a theory is a broad explanation supported by a large body of evidence.

Question 20

A population of finches on the Galápagos Islands evolves different beak shapes to exploit different food sources. This is an example of:

Accepted Answer

Descent with modification through natural selection.

Evolution, the Themes of Biology, and Scientific Inquiry: Study Notes

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