Question 1

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

Accepted Answer

A single muscle cell can contract, but a whole muscle can generate movement that a single cell cannot.

Question 2

Which of the following is NOT a requirement for natural selection to occur in a population?

Accepted Answer

All individuals must have identical traits.

Question 3

A scientist is testing the effect of different fertilizer types on plant growth. She uses the same amount of water, sunlight, and soil for all plants. What is the independent variable in this experiment?

Accepted Answer

Type of fertilizer used

Question 4

Which of the following best describes the process of science?

Accepted Answer

Making observations, forming hypotheses, conducting experiments, analyzing data, and drawing conclusions.

Question 5

In the context of the sickle cell mutation, which levels of biological organization are directly impacted? (Select the most comprehensive answer.)

Accepted Answer

Molecular, cellular, tissue, organ, and population levels

Question 6

Which of the following is the best example of an emergent property at the ecosystem level?

Accepted Answer

Nutrient cycling between organisms and their environment

Question 7

A researcher is studying the effect of temperature on enzyme activity. She measures the rate of reaction at 10°C, 20°C, 30°C, and 40°C. Which type of graph would best display her results?

Accepted Answer

Line graph

Question 8

Which of the following statements about the three domains of life is correct?

Accepted Answer

Bacteria and Archaea are both prokaryotic, while Eukarya includes all eukaryotic organisms.

Question 9

A population of insects is exposed to a new pesticide. After several generations, most individuals are resistant to the pesticide. Which condition is necessary for this evolutionary change to be attributed to natural selection?

Accepted Answer

Resistance to the pesticide is heritable and increases reproductive success.

Question 10

Which of the following best defines a scientific hypothesis?

Accepted Answer

A testable explanation for an observation or phenomenon.

Question 11

A scientist wants to compare the average enzyme activity in three different pH conditions. Which type of graph should she use to best display her results?

Accepted Answer

Bar graph

Question 12

Which of the following scenarios best demonstrates the interaction theme in biology?

Accepted Answer

A plant's roots absorb water and minerals from the soil, while its leaves exchange gases with the atmosphere.

Question 13

In an experiment, the dependent variable is best described as:

Accepted Answer

The measured outcome that responds to changes in the independent variable.

Question 14

Which of the following best explains why both the A and S alleles for hemoglobin persist in populations where malaria is common?

Accepted Answer

Individuals with the AS genotype have increased survival and reproductive success in malarial regions.

Question 15

A patient has a mutation that causes improper folding of a protein responsible for transporting LDL cholesterol. This leads to increased plaque in arteries. Which level of biological organization is primarily disrupted?

Accepted Answer

Molecular

Question 16

Which of the following is an example of a positive control in an experiment?

Accepted Answer

A group that receives a treatment known to produce the expected effect.

Question 17

A researcher is examining how different levels of pollution affect the number of bird species in a given area. What is the dependent variable?

Accepted Answer

Number of bird species

Question 18

Which of the following best describes the relationship between energy and matter in biological systems?

Accepted Answer

Energy flows through ecosystems, while matter cycles within them.

Question 19

A population of mice with heritable variation in coat color colonizes a light sandy environment. Over generations, light-colored mice become more common because they are less visible to predators and produce more offspring. Which condition is most critical for this change to be attributed to natural selection?

Accepted Answer

Light-colored mice have higher reproductive success due to predation pressure.

Question 20

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

Accepted Answer

A variable that is kept constant to ensure that the effect of the independent variable can be measured accurately.

General Biology Chapter 1/21: Introduction to Biology – Guided Study and Practice

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드