Question 1

Which of the following is NOT a characteristic that defines life according to modern biology?

Accepted Answer

Ability to photosynthesize

Question 2

Viruses are often debated as living or non-living. Which feature do viruses lack that prevents them from being classified as truly alive?

Accepted Answer

Ability to maintain organized complexity independently

Question 3

Which of the following best describes the difference between autotrophs and heterotrophs?

Accepted Answer

Autotrophs synthesize their own organic compounds from CO$$_2$$; heterotrophs obtain organic compounds from other organisms

Question 4

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

Accepted Answer

Cell $$ightarrow$$ Tissue $$ightarrow$$ Organ $$ightarrow$$ Organ System $$ightarrow$$ Organism

Question 5

A scientist observes that bacteria grow by enlarging their cells and then dividing. Which process is primarily responsible for this type of reproduction?

Accepted Answer

Binary fission

Question 6

Which domain includes organisms with membrane-bound nuclei and organelles?

Accepted Answer

Eukarya

Question 7

Which of the following is an example of homeostasis in mammals?

Accepted Answer

Sweating to cool down when body temperature rises

Question 8

Which of the following statements about evolution is TRUE?

Accepted Answer

Evolution is the accumulation of genetic changes in populations over time

Question 9

A mutation in DNA can be caused by which of the following?

Accepted Answer

Errors during DNA replication by enzymes

Question 10

Which of the following kingdoms contains both unicellular and multicellular organisms, and can be either autotrophic or heterotrophic?

Accepted Answer

Kingdom Protista

Question 11

Which of the following is a correct example of binomial nomenclature?

Accepted Answer

Homo sapiens

Question 12

Which of the following is a scientific theory?

Accepted Answer

A general and reliable explanation of important natural phenomena, supported by repeated experiments

Question 13

Which of the following is a correct application of the scientific method?

Accepted Answer

Formulating a hypothesis after making an observation

Question 14

Which of the following is a function of ribosomes in both prokaryotic and eukaryotic cells?

Accepted Answer

Synthesis of proteins

Question 15

Which of the following best describes the flow of energy and cycling of nutrients in ecosystems?

Accepted Answer

Energy flows in one direction; nutrients are cycled

Question 16

Which of the following is an example of an adaptation resulting from natural selection?

Accepted Answer

Predators developing sharper teeth over generations

Question 17

Which of the following statements about prokaryotic cells is TRUE?

Accepted Answer

Their DNA is circular and usually a single molecule

Question 18

Which of the following is a reason why experiments include controls?

Accepted Answer

To ensure that observed effects are due to the variable being tested

Question 19

Which of the following is a correct example of deductive reasoning in biology?

Accepted Answer

If an object exhibits all the characteristics of life, then it must be living

Question 20

Which of the following is a plausible outcome if a species fails to adapt to a changing environment?

Accepted Answer

Extinction

Introduction to Life on Earth: Defining Life, Evolution, and Scientific Study

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