Question 1

Which of the following correctly describes the function of a ligament at a joint?

Accepted Answer

A ligament attaches bone to bone, stabilizing the joint.

Question 2

A cyclist is riding up a steep hill. Which function of the skeleton is MOST directly involved in allowing the cyclist to push down on the pedals?

Accepted Answer

Attachment for muscles to produce movement

Question 3

Which of the following bones is NOT part of the human arm?

Accepted Answer

Femur

Question 4

What is the correct sequence of blood flow through the heart, lungs, and body?

Accepted Answer

Right atrium → right ventricle → lungs → left atrium → left ventricle → body

Question 5

Which test would you use to identify the presence of starch in a food sample, and what is a positive result?

Accepted Answer

Add iodine solution; a positive result is a blue-black color.

Question 6

Which organ produces bile, and what is its role in digestion?

Accepted Answer

The liver; bile helps break down fats in the small intestine.

Question 7

A patient is unable to absorb nutrients efficiently into their bloodstream. Which organ is most likely malfunctioning?

Accepted Answer

Small intestine

Question 8

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

Accepted Answer

Organisms best adapted to their environment survive and pass on their genes.

Question 9

Which adaptation helps penguins survive in cold environments?

Accepted Answer

Thick layer of blubber for insulation

Question 10

Which of the following is a function of the cornea in the human eye?

Accepted Answer

Provides a protective layer and helps focus light

Question 11

What is the main benefit of binocular vision in humans?

Accepted Answer

Easier judgment of distance and direction

Question 12

Which structure in the male reproductive system produces sperm?

Accepted Answer

Testes

Question 13

Which part of a flower is responsible for producing pollen?

Accepted Answer

Anther

Question 14

Which of the following best describes the process of fertilization in flowering plants?

Accepted Answer

The pollen tube grows through the style to the ovary, allowing male gametes to fertilize the ovule.

Question 15

Why is seed dispersal important for plants?

Accepted Answer

It reduces competition for resources between parent and offspring plants.

Question 16

Which of the following is an example of a ball and socket joint in the human body?

Accepted Answer

Hip

Question 17

During arm movement, how do the biceps and triceps work together?

Accepted Answer

Biceps contract while triceps relax to lift the forearm.

Question 18

Which of the following is a correct description of a tendon?

Accepted Answer

A tendon attaches muscle to bone.

Question 19

Which organ produces enzymes that help digest food but does NOT directly absorb nutrients?

Accepted Answer

Pancreas

Question 20

A heart attack is caused by which of the following?

Accepted Answer

A blockage in a coronary artery, starving part of the heart of oxygen

Biology Study Guide: Skeletons, Movement, Digestion, Nervous System, Heart, Evolution, and Reproduction

Study Guide - Practice Questions