Question 1

Which of the following best describes the role of a control group in a scientific experiment?

Accepted Answer

It is the group where the independent variable is not applied, allowing for comparison to determine the effect of the independent variable.

Question 2

In the 'Swimming with the Turtles' experiment, what was the independent variable?

Accepted Answer

The type of object released (turtles or buckets)

Question 3

A scientist hypothesizes that a new fertilizer will increase plant growth. She sets up two groups of plants: one receives the fertilizer, and the other does not. She measures the height of the plants after four weeks. What is the dependent variable in this experiment?

Accepted Answer

The height of the plants after four weeks

Question 4

Which of the following statements correctly distinguishes between a hypothesis and a scientific theory?

Accepted Answer

A hypothesis is a proposed explanation for observations, while a theory is a comprehensive explanation supported by substantial evidence.

Question 5

If the results of an experiment do not support the original hypothesis, what is the most appropriate next step according to the scientific method?

Accepted Answer

Formulate a new hypothesis and design a new experiment to test it.

Question 6

Which of the following is an example of information flow within the human body?

Accepted Answer

Genes providing instructions for building proteins that determine traits such as eye color

Question 7

Which of the following best illustrates the correlation between structure and function in biology?

Accepted Answer

The structure of a plant leaf changing direction to maximize sunlight absorption for photosynthesis

Question 8

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

Accepted Answer

Atom, Molecule, Organelle, Cell, Tissue, Organ, Organ System, Organism, Population, Community, Ecosystem, Biosphere

Question 9

Which of the following best describes natural selection?

Accepted Answer

The process by which individuals with inherited traits that are better suited to the environment are more likely to survive and reproduce.

Question 10

A researcher wants to test if a new drug reduces blood pressure. She gives the drug to one group and a placebo to another, but neither the participants nor the researchers know who receives which treatment until after the experiment. What type of experimental design is this?

Accepted Answer

Double-blind experiment

Question 11

Which of the following is the correct SI base unit for measuring mass?

Accepted Answer

Gram ($$g)$$

Question 12

Why is peer review an essential part of the scientific process?

Accepted Answer

It provides impartial evaluation by experts, increasing the credibility and validity of scientific findings.

Question 13

Which of the following best describes the transformation of energy in an ecosystem?

Accepted Answer

Energy from the sun is converted by plants through photosynthesis and then transferred to other organisms through consumption.

Question 14

A student designs an experiment to test whether the amount of sunlight affects the rate of photosynthesis in plants. She uses identical plants, exposes them to different amounts of sunlight, and measures the amount of oxygen produced. What is the independent variable?

Accepted Answer

The amount of sunlight each plant receives

Question 15

Which of the following is NOT a step in the process of science as described in the study materials?

Accepted Answer

Ignoring data that does not support the hypothesis

Question 16

In a controlled experiment, why is it important to only change one variable at a time?

Accepted Answer

To ensure that the results are due to the variable being tested and not other factors.

Question 17

Which of the following best describes the main goal of science?

Accepted Answer

To provide explanations and answers to specific questions about the natural world based on evidence.

Question 18

A student wants to test if the temperature of water affects how quickly sugar dissolves. She uses the same amount of sugar and water in each trial but changes the water temperature. What is the dependent variable?

Accepted Answer

The time it takes for the sugar to dissolve

Question 19

Which of the following is an example of a real-world application of the scientific method?

Accepted Answer

A doctor observes that patients recover faster with a new medication, forms a hypothesis, tests it with a clinical trial, and analyzes the results.

Question 20

Which of the following is the correct SI base unit for measuring temperature?

Accepted Answer

Degree Celsius ($$^\circ C)$$

General Biology Assignment 1 Study Guidance: Scientific Method, Experiment Design, and Major Themes

Study Guide - Practice Questions

Study Guide - Flashcards