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

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

Question 1

Which of the following is NOT a property of life as defined in biology?

Accepted Answer

No response to stimuli

Question 2

A scientist is studying the effect of light intensity on the rate of photosynthesis in plants. Which variable is the dependent variable in this experiment?

Accepted Answer

Rate of photosynthesis

Question 3

Which domain includes organisms that can survive in extreme environments, such as high salinity or temperature?

Accepted Answer

Archaea

Question 4

Which of the following best describes the process of homeostasis?

Accepted Answer

The regulation and maintenance of an organism's internal environment within limits that sustain life

Question 5

In the hierarchy of biological organization, which level comes directly above 'cell'?

Accepted Answer

Tissue

Question 6

Which of the following is an example of a deductive reasoning process in science?

Accepted Answer

Using a general principle to predict the outcome of a specific experiment

Question 7

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

Accepted Answer

Homo sapiens

Question 8

A researcher wants to test the hypothesis that red pandas and giant pandas share a common ancestor. Which type of data would be most useful for this investigation?

Accepted Answer

DNA sequence comparisons

Question 9

Which of the following is NOT a unifying theme in biology?

Accepted Answer

Gravity

Question 10

Which of the following statements about scientific hypotheses is TRUE?

Accepted Answer

A hypothesis can be tested using controlled experiments

Question 11

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

Accepted Answer

They recycle nutrients by breaking down dead organisms

Question 12

Which of the following is a correct statement about the flow of genetic information in cells?

Accepted Answer

Genes are stored in DNA and control cell activities

Question 13

Which of the following is an example of an autotroph?

Accepted Answer

A green plant

Question 14

Which of the following is NOT found in all cells from the three domains of life?

Accepted Answer

Cell wall

Question 15

A scientist observes that a flashlight does not work. She hypothesizes that either the batteries are dead or the bulb is burned out. What is the next step in the scientific method?

Accepted Answer

Test the hypothesis

Question 16

Which of the following is an example of evolutionary adaptation?

Accepted Answer

A red panda's fur color camouflaging it in its environment

Question 17

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

Accepted Answer

Organelle → Cell → Tissue → Organ → Organ system → Organism

Question 18

Which of the following is a correct example of a controlled experiment?

Accepted Answer

Testing the effect of a drug on mice with one group receiving the drug and another group not receiving it

Question 19

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

Accepted Answer

Synthesizing proteins

Question 20

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

Accepted Answer

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

Introduction to Biology: Exploring Life and Scientific Principles

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