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

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

Question 1

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

Accepted Answer

Randomness

Question 2

A scientist observes that a flashlight does not work. According to the scientific method, what is the next step?

Accepted Answer

Ask a question about the observation

Question 3

Which domain contains organisms with simple cells that lack a nucleus?

Accepted Answer

Domain Bacteria

Question 4

In the hierarchy of biological organization, which level comes directly below 'Organism'?

Accepted Answer

Population

Question 5

Which of the following best describes an emergent property?

Accepted Answer

A property that arises from the arrangement and interactions of parts within a system

Question 6

A hypothesis must be:

Accepted Answer

Testable and based on inductive reasoning

Question 7

In an experiment testing camouflage in mice, what is the dependent variable?

Accepted Answer

The number of predator attacks on the decoys

Question 8

Which of the following is an example of evolutionary adaptation?

Accepted Answer

A population of insects developing resistance to a pesticide over several generations

Question 9

According to Darwin's theory of evolution by natural selection, which observation leads to the inference that adaptations evolve in populations?

Accepted Answer

Heritable variations and overproduction of offspring

Question 10

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

Accepted Answer

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

Question 11

Which kingdom is characterized by organisms that absorb nutrients from their environment and often decompose organic material?

Accepted Answer

Kingdom Fungi

Question 12

Which of the following best illustrates the relationship between structure and function at the molecular level?

Accepted Answer

The shape of a protein determines its ability to interact with other molecules

Question 13

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

Accepted Answer

Testing a hypothesis by conducting a controlled experiment

Question 14

Which of the following is an example of a system in biology?

Accepted Answer

A population of fish interacting with their environment

Question 15

Which of the following statements about DNA is correct?

Accepted Answer

DNA provides the blueprint for proteins

Question 16

A biologist is studying the evolutionary relationships among red pandas, raccoons, and giant pandas. Which type of data would best resolve their classification?

Accepted Answer

DNA sequence comparisons

Question 17

Which of the following is a real-world example of regulation in living organisms?

Accepted Answer

The pancreas releasing insulin to regulate blood glucose levels

Question 18

Which formula represents the relationship between the independent and dependent variables in a controlled experiment?

Accepted Answer

$$	ext{Dependent Variable} = f(	ext{Independent Variable})$$

Question 19

Which of the following best describes the cycling of matter in an ecosystem?

Accepted Answer

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

Question 20

Which of the following is a plausible reason why a scientific finding must be replicable?

Accepted Answer

To ensure the reliability and validity of the results

Biology: Exploring Life – Foundations and Core Themes

Study Guide - Practice Questions

Study Guide - Flashcards