Question 1

Which of the following is NOT one of the five fundamental characteristics shared by all living organisms?

Accepted Answer

They are capable of photosynthesis.

Question 2

In the context of biological fitness, which of the following best defines 'fitness'?

Accepted Answer

The ability of an individual to produce more surviving offspring than others in the population.

Question 3

Which experiment provided strong evidence against the theory of spontaneous generation?

Accepted Answer

Louis Pasteur’s swan-neck flask experiment

Question 4

Which of the following statements about scientific theories is TRUE?

Accepted Answer

A scientific theory is an explanation for a very general class of phenomena supported by a wide body of evidence.

Question 5

Which of the following best describes the central dogma of molecular biology?

Accepted Answer

DNA codes for RNA, which codes for proteins.

Question 6

A mutation occurs in the DNA sequence of a gene. Which of the following is a possible consequence?

Accepted Answer

The mutation may lead to a change in the protein produced, potentially affecting the organism’s phenotype.

Question 7

Which of the following is an example of an adaptation?

Accepted Answer

A trait that increases an individual’s fitness in a particular environment.

Question 8

In an experiment, which variable is manipulated by the researcher?

Accepted Answer

Independent variable

Question 9

Which of the following best explains why control groups are important in experimental design?

Accepted Answer

They provide a baseline to compare the effects of the experimental variable.

Question 10

Which of the following best describes the relationship between genotype and phenotype?

Accepted Answer

Genotype determines the sequence of DNA, which in turn influences the phenotype, or observable traits.

Question 11

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

Accepted Answer

Organelle, cell, tissue, organ, organism

Question 12

Which of the following is a prediction that follows from the food competition hypothesis for giraffe neck length?

Accepted Answer

Giraffes with longer necks will feed higher in trees than those with shorter necks.

Question 13

Which of the following best describes the outcome of the desert ant experiment testing the pedometer hypothesis?

Accepted Answer

Ants with altered stride length misjudged the distance to the nest, supporting the pedometer hypothesis.

Question 14

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

Accepted Answer

Eukarya includes plants, fungi, animals, and protists.

Question 15

Which of the following best describes the process of natural selection?

Accepted Answer

Individuals with certain heritable traits produce more offspring, causing those traits to become more common in the population.

Question 16

Which of the following is the correct scientific name for humans, following the rules of binomial nomenclature?

Accepted Answer

Homo sapiens

Question 17

Which of the following best describes the role of ATP in living organisms?

Accepted Answer

ATP is the main energy currency used to power cellular processes.

Question 18

Which of the following best explains why DNA replication is highly accurate, but mutations still occur?

Accepted Answer

DNA replication is highly accurate, but occasional errors (mutations) can occur, leading to genetic variation.

Question 19

Which of the following best describes a phylogenetic tree?

Accepted Answer

A family tree that depicts evolutionary relationships among species.

Question 20

If a scientist wants to test whether a new fertilizer increases plant growth, which of the following would be the best experimental design?

Accepted Answer

Apply the fertilizer to half the plants (experimental group) and leave the other half untreated (control group), keeping all other conditions constant.

Chapter 1: Biology – The Study of Life

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