Q: Which of the following is a correct sequence for the flow of energy in an ecosystem?

$$\text{Sun} \rightarrow \text{Producers} \rightarrow \text{Consumers} \rightarrow \text{Decomposers}$$

Question 1

Which of the following is an example of an emergent property in biological systems?

Accepted Answer

The coordinated contraction of heart muscle cells resulting in a heartbeat.

Question 2

Which statement best describes the Central Dogma of Molecular Biology?

Accepted Answer

DNA is transcribed into RNA, which is then translated into protein.

Question 3

A scientist observes that leaves change color when the temperature drops. Which type of reasoning is being used if they predict that all trees will have yellow leaves in autumn?

Accepted Answer

Deductive reasoning

Question 4

Which of the following is NOT a property of life as described in the study materials?

Accepted Answer

Permanent genetic makeup

Question 5

In the hierarchy of biological organization, which level comes directly after 'organism'?

Accepted Answer

Organ system

Question 6

Which of the following best explains why viruses are not considered living organisms?

Accepted Answer

They are unable to replicate without a host cell.

Question 7

Which of the following is a correct pairing of DNA bases and their hydrogen bonds?

Accepted Answer

Guanine (G) and Cytosine (C): triple hydrogen bond

Question 8

Which domain of life includes organisms that can survive in extreme environments such as boiling hot springs?

Accepted Answer

Archaea

Question 9

A population of beetles is exposed to a new pesticide. Over several generations, most beetles are resistant to the pesticide. Which evolutionary process is most likely responsible?

Accepted Answer

Natural selection

Question 10

Which of the following is an example of adaptive radiation?

Accepted Answer

A single species of finch evolving into multiple species with different beak shapes on the Galápagos Islands.

Question 11

Which of the following is a correct sequence for the flow of energy in an ecosystem?

Accepted Answer

$$	ext{Sun} ightarrow 	ext{Producers} ightarrow 	ext{Consumers} ightarrow 	ext{Decomposers}$$

Question 12

Which of the following best describes a controlled experiment?

Accepted Answer

An experiment comparing an experimental group with a control group.

Question 13

Which of the following is a key difference between prokaryotic and eukaryotic cells?

Accepted Answer

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

Question 14

Which of the following is an example of feedback regulation in the human body?

Accepted Answer

The increase of insulin secretion when blood glucose levels rise.

Question 15

Which of the following is true about the Linnaean Classification System?

Accepted Answer

It classifies organisms by resemblance, morphology, and DNA sequence.

Question 16

Which of the following is a correct statement about natural selection?

Accepted Answer

Natural selection acts on heritable variation within a population.

Question 17

Which of the following is an example of a hypothesis in the scientific process?

Accepted Answer

"If plants are given more sunlight, then they will grow taller."

Question 18

Which of the following is a correct description of gene expression?

Accepted Answer

The process of DNA replication, transcription, and translation to create cellular components.

Question 19

Which of the following is a correct example of inductive reasoning?

Accepted Answer

Observing that the sun rises every morning and concluding that the sun always rises in the east.

Question 20

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

Accepted Answer

They recycle chemicals and nutrients by breaking down dead and waste material.

Foundations of Life and Evolution: General Biology Study Notes

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