About this Study Set
This study set covers Life Science through
20 practice questions.
A collection of verified facts regarding animal biology, ecology, and natural systems. 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
Life Science and Nature Facts study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which organ in a shark is primarily responsible for maintaining buoyancy?
-
A
The gills
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B
The fatty liver
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C
The swim bladder
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D
The dorsal fin
2
What is the largest living species of lizard on Earth?
-
A
Green Iguana
-
B
Gila Monster
-
C
Komodo Dragon
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D
Nile Monitor
3
Which process do plants use to convert light energy into chemical energy?
-
A
Respiration
-
B
Transpiration
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C
Photosynthesis
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D
Fermentation
4
What type of animal is a platypus?
-
A
Marsupial
-
B
Monotreme
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C
Placental mammal
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D
Reptile
5
Which gas do plants primarily absorb from the atmosphere for photosynthesis?
-
A
Oxygen
-
B
Nitrogen
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C
Carbon dioxide
-
D
Hydrogen
6
How many chambers are in a typical bird's heart?
-
A
Two
-
B
Three
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C
Four
-
D
Five
7
Which element is the primary component of an elephant's tusks?
-
A
Keratin
-
B
Dentin
-
C
Enamel
-
D
Calcium carbonate
8
What is the primary diet of a giant panda?
-
A
Insects
-
B
Meat
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C
Bamboo
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D
Fruits
9
Which marine mammal is known to have the thickest fur of any animal?
-
A
Sea otter
-
B
Polar bear
-
C
Walrus
-
D
Dolphin
10
What is the collective noun for a group of crows?
-
A
Pack
-
B
Murder
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C
Flock
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D
School
11
Which part of a flower develops into a fruit?
-
A
Stamen
-
B
Petal
-
C
Ovary
-
D
Sepal
12
What is the fastest land animal?
-
A
Lion
-
B
Cheetah
-
C
Springbok
-
D
Greyhound
13
Which layer of the Earth's atmosphere contains the ozone layer?
-
A
Troposphere
-
B
Stratosphere
-
C
Mesosphere
-
D
Thermosphere
14
How do bees communicate the location of food sources to other bees?
-
A
Chemical pheromones
-
B
Sound pulses
-
C
Waggle dance
-
D
Visual blinking
15
Which bird is known to be the only one capable of flying backwards?
-
A
Hummingbird
-
B
Swift
-
C
Kingfisher
-
D
Woodpecker
16
Which biome is characterized by permafrost?
-
A
Taiga
-
B
Tundra
-
C
Savanna
-
D
Chaparral
17
What is the largest species of penguin?
-
A
Gentoo penguin
-
B
Adélie penguin
-
C
Emperor penguin
-
D
Chinstrap penguin
18
Which structure in an insect's body allows them to breathe?
-
A
Lungs
-
B
Tracheae
-
C
Gills
-
D
Skin
19
What is the primary pigment responsible for the green color in plants?
-
A
Carotene
-
B
Anthocyanin
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C
Chlorophyll
-
D
Xanthophyll
20
Which amphibian is known for undergoing neoteny, meaning it retains its larval gills throughout its entire adult life?
-
A
Axolotl
-
B
Bullfrog
-
C
Newt
-
D
Toad
