About this Study Set
This study set covers Biology through
20 practice questions.
Explore fundamental concepts in biology, covering topics from cells and body systems to plants and ecosystems, tailored for middle school students. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 20 questions from the
Middle School Biology Basics study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
What is the basic unit of all living things?
-
A
Organ
-
B
Tissue
-
C
Cell
-
D
System
2
Which gas do plants absorb from the air for photosynthesis?
-
A
Oxygen
-
B
Nitrogen
-
C
Carbon Dioxide
-
D
Hydrogen
3
What is the main function of the heart in the human body?
-
A
To digest food
-
B
To filter blood
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C
To pump blood
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D
To help you breathe
4
Which group of animals has a backbone?
-
A
Invertebrates
-
B
Arthropods
-
C
Vertebrates
-
D
Molluscs
5
What part of a plant absorbs water and nutrients from the soil?
-
A
Leaf
-
B
Stem
-
C
Flower
-
D
Root
6
An organism that produces its own food, like a plant, is called a...?
-
A
Consumer
-
B
Decomposer
-
C
Producer
-
D
Predator
7
What carries genetic information from parents to offspring?
-
A
Proteins
-
B
Fats
-
C
DNA
-
D
Carbohydrates
8
A place where an organism lives and finds all its needs is called its...?
-
A
Population
-
B
Community
-
C
Habitat
-
D
Biome
9
Which of these is a type of microorganism?
-
A
Elephant
-
B
Mushroom
-
C
Bacteria
-
D
Seagull
10
What gas do humans breathe out as a waste product?
-
A
Oxygen
-
B
Carbon Dioxide
-
C
Nitrogen
-
D
Methane
11
Which sense uses the eyes to detect light?
-
A
Hearing
-
B
Smell
-
C
Sight
-
D
Touch
12
What is the process where an insect changes completely from a larva to an adult, like a butterfly?
-
A
Germination
-
B
Pollination
-
C
Metamorphosis
-
D
Photosynthesis
13
The ability of an organism to survive and reproduce in its environment is called...?
-
A
Migration
-
B
Hibernation
-
C
Adaptation
-
D
Extinction
14
Which nutrient helps to build and repair body tissues?
-
A
Carbohydrates
-
B
Fats
-
C
Vitamins
-
D
Proteins
15
Which of these animals is a mammal?
-
A
Frog
-
B
Snake
-
C
Eagle
-
D
Dolphin
16
The movement of particles from an area of higher concentration to an area of lower concentration is called...?
-
A
Osmosis
-
B
Active Transport
-
C
Photosynthesis
-
D
Diffusion
17
A large natural region with specific climate, plants, and animals is a...?
-
A
Ecosystem
-
B
Biome
-
C
Habitat
-
D
Niche
18
What is an important practice to prevent the spread of germs and diseases?
-
A
Eating sweets
-
B
Watching TV
-
C
Washing hands
-
D
Sleeping less
19
What type of reproduction involves two parents contributing genetic material?
-
A
Asexual reproduction
-
B
Binary fission
-
C
Sexual reproduction
-
D
Budding
20
Which of these is NOT a characteristic of all living things?
-
A
They reproduce
-
B
They grow and develop
-
C
They have fur
-
D
They respond to stimuli
