Question 1

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

Accepted Answer

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

Question 2

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

Accepted Answer

Eukaryotic cells contain membrane-bound organelles, including a nucleus.

Question 3

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

Accepted Answer

The conversion of information from a gene to a cellular product, often involving RNA as an intermediary.

Question 4

During which phase of mitosis do chromosomes align at the center of the cell?

Accepted Answer

Metaphase

Question 5

Which of the following is NOT a characteristic of life?

Accepted Answer

Ability to photosynthesize

Question 6

A scientist observes that a certain plant species can survive in both dry and wet environments by altering its leaf structure. Which characteristic of life does this best illustrate?

Accepted Answer

Adaptation through evolution

Question 7

Which of the following best explains why mitochondria are often called the 'powerhouse' of the cell?

Accepted Answer

They produce ATP through cellular respiration.

Question 8

Which of the following is a correct statement about DNA?

Accepted Answer

DNA contains four types of chemical building blocks: A, C, T, and G.

Question 9

Which of the following is an example of a symbiotic relationship where both organisms benefit?

Accepted Answer

Mutualism

Question 10

According to the cell theory, which of the following statements is true?

Accepted Answer

All cells come from preexisting cells.

Question 11

Which of the following best describes the process of binary fission?

Accepted Answer

A form of asexual reproduction used by bacteria to produce two identical cells.

Question 12

Which of the following is a direct result of natural selection?

Accepted Answer

An increase in the frequency of traits that enhance survival in a population.

Question 13

Which of the following best describes the concept of 'phylogeny'?

Accepted Answer

The evolutionary history and relationships among a group of species.

Question 14

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

Accepted Answer

Species are related by common ancestry and can change over time.

Question 15

Which of the following best explains why energy flow in an ecosystem is considered unidirectional?

Accepted Answer

Energy enters as sunlight, is converted to chemical energy, and exits as heat.

Question 16

A population of beetles has two color morphs: green and brown. Birds more easily spot and eat green beetles. Over several generations, the frequency of brown beetles increases. Which evolutionary mechanism is at work?

Accepted Answer

Natural selection

Question 17

Which of the following is a function of ribosomes in the cell?

Accepted Answer

Protein synthesis

Question 18

Which of the following best describes the difference between commensalism and mutualism?

Accepted Answer

In commensalism, one organism benefits and the other is unaffected; in mutualism, both benefit.

Question 19

Which of the following is true regarding the domains of life?

Accepted Answer

The three domains are Bacteria, Archaea, and Eukarya.

Question 20

A scientist is studying a newly discovered organism. It has membrane-bound organelles, a nucleus, and performs photosynthesis. To which domain does this organism most likely belong?

Accepted Answer

Eukarya

Foundations of General Biology: Study Guide

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