Q: Which equation best represents the flow of energy in an ecosystem?

$\text{Sunlight} \rightarrow \text{Producers} \rightarrow \text{Consumers} \rightarrow \text{Heat}$

Q: Which of the following best describes the flow of genetic information in a cell?

$\text{DNA} \rightarrow \text{RNA} \rightarrow \text{Protein}$

Question 1

Which of the following is NOT one of the seven properties common to all life?

Accepted Answer

Ability to photosynthesize

Question 2

In the hierarchy of biological organization, which level includes all the others: cell, molecule, organ, tissue?

Question 3

Which domain contains organisms with simple cells lacking a nucleus?

Accepted Answer

Domain Bacteria

Question 4

A scientific hypothesis must be:

Accepted Answer

Testable and falsifiable

Question 5

In a controlled experiment, the variable that is manipulated by the researcher is called the:

Accepted Answer

Independent variable

Question 6

Why are comparisons of DNA sequences considered observational and not experimental data?

Accepted Answer

Because they involve observing existing genetic information without intervention

Question 7

Which of the following best describes an emergent property?

Accepted Answer

A property that arises from the interaction of individual components in a system

Question 8

Which of the following is an example of artificial selection?

Accepted Answer

Humans breeding dogs for specific traits

Question 9

Which equation best represents the flow of energy in an ecosystem?

Accepted Answer

$	ext{Sunlight} ightarrow 	ext{Producers} ightarrow 	ext{Consumers} ightarrow 	ext{Heat}$

Question 10

Which of the following best explains the relationship between structure and function in biology?

Accepted Answer

Structure determines function at all levels, from molecules to organisms

Question 11

Which process is responsible for the unity and diversity of life?

Accepted Answer

Evolution

Question 12

In the context of the scientific method, what is the role of a control group?

Accepted Answer

To provide a baseline for comparison

Question 13

Which of the following is a correct statement about the cycling of matter in ecosystems?

Accepted Answer

Matter cycles from the atmosphere and soil through producers, consumers, and decomposers, then back to the environment

Question 14

Which of the following best describes the flow of genetic information in a cell?

Accepted Answer

$	ext{DNA} ightarrow 	ext{RNA} ightarrow 	ext{Protein}$

Question 15

A scientist wants to test the effect of a new fertilizer on plant growth. She sets up two groups: one receives the fertilizer, the other does not. She measures plant height after 4 weeks. What is the dependent variable?

Accepted Answer

The plant height after 4 weeks

Question 16

Which of the following is an example of evolutionary adaptation?

Accepted Answer

A red panda's bushy tail providing warmth in winter

Question 17

Why do scientists try to match factors such as sex, age, and general health for subjects in control and experimental groups?

Accepted Answer

To eliminate the effect of confounding variables

Question 18

Which of the following is a product of natural selection?

Accepted Answer

Increased frequency of advantageous traits in a population over generations

Question 19

Which of the following best describes systems biology?

Accepted Answer

Modeling the behavior of biological systems by analyzing interactions among their parts

Question 20

Which of the following is a correct statement about scientific theories?

Accepted Answer

They are broad in scope and supported by a large body of evidence

Biology: Exploring Life – Chapter 1 Study Notes

Study Guide - Practice Questions

Study Guide - Flashcards