How many times can a starfish regenerate its arms?

1 / 40 Questions

0 Points

Once

Twice

Five times

Indefinitely

Which animal is known as a 'keystone species' in North American forests?

White-tailed deer

Gray wolf

Beaver

Red squirrel

How many years can a giant sequoia tree live?

Up to 1,000 years

Up to 2,000 years

Up to 3,000 years

Up to 4,000 years

What is the name of the process where plants convert sunlight into energy?

Respiration

Photosynthesis

Decomposition

Fermentation

Which famous naturalist wrote 'On the Origin of Species'?

John Muir

Charles Darwin

Jane Goodall

Rachel Carson

What percentage of Earth's surface is covered by oceans?

0.51

0.61

0.71

0.81

Which animal has the largest migration of any mammal?

Blue whale

Arctic tern

Monarch butterfly

Caribou

What's the average lifespan of a honey bee?

2-3 weeks

4-6 weeks

3-4 months

1-2 years

Which ecosystem type covers the largest land area on Earth?

Grasslands

Forests

Tundra

Deserts

How many species of coral are estimated to exist worldwide?

About 800

About 2,500

About 6,000

About 10,000

What percentage of the world's oxygen is produced by the Amazon rainforest?

0.05

0.1

0.2

0.3

How many hearts does an octopus have?

Which bird species can fly backward?

Eagle

Hummingbird

Penguin

Sparrow

How many species go extinct every day?

100

150

What percentage of Earth's freshwater is frozen in glaciers?

0.5

0.68

0.87

0.95

How many eggs can a female sea turtle lay in one nest?

50-70

100-120

150-200

250-300

What percentage of plant species depend on bees for pollination?

0.3

0.5

0.7

0.9

How many species of bacteria live in a teaspoon of soil?

100

1000

10000

40000

What percentage of Earth's species are yet to be discovered?

0.1

0.5

0.86

0.95

What percentage of Earth's species are estimated to live in tropical rainforests?

0.3

0.5

0.8

0.95

How many times can a starfish regenerate its arms?

Once

Twice

Five times

Indefinitely

Which animal is known as a 'keystone species' in North American forests?

White-tailed deer

Gray wolf

Beaver

Red squirrel

How many years can a giant sequoia tree live?

Up to 1,000 years

Up to 2,000 years

Up to 3,000 years

Up to 4,000 years

What is the name of the process where plants convert sunlight into energy?

Respiration

Photosynthesis

Decomposition

Fermentation

Which famous naturalist wrote 'On the Origin of Species'?

John Muir

Charles Darwin

Jane Goodall

Rachel Carson

What percentage of Earth's surface is covered by oceans?

0.51

0.61

0.71

0.81

Which animal has the largest migration of any mammal?

Blue whale

Arctic tern

Monarch butterfly

Caribou

What's the average lifespan of a honey bee?

2-3 weeks

4-6 weeks

3-4 months

1-2 years

Which ecosystem type covers the largest land area on Earth?

Grasslands

Forests

Tundra

Deserts

How many species of coral are estimated to exist worldwide?

About 800

About 2,500

About 6,000

About 10,000

What percentage of the world's oxygen is produced by the Amazon rainforest?

0.05

0.1

0.2

0.3

How many hearts does an octopus have?

Which bird species can fly backward?

Eagle

Hummingbird

Penguin

Sparrow

How many species go extinct every day?

100

150

What percentage of Earth's freshwater is frozen in glaciers?

0.5

0.68

0.87

0.95

How many eggs can a female sea turtle lay in one nest?

50-70

100-120

150-200

250-300

What percentage of plant species depend on bees for pollination?

0.3

0.5

0.7

0.9

How many species of bacteria live in a teaspoon of soil?

100

1000

10000

40000

What percentage of Earth's species are yet to be discovered?

0.1

0.5

0.86

0.95

What percentage of Earth's species are estimated to live in tropical rainforests?

0.3

0.5

0.8

0.95

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