Ecosystems and Biomes of Planet Earth

The video explores various biomes on Earth, including marine, freshwater, polar regions, tundra, forests, grasslands, tropical rainforests, and deserts. It discusses the unique characteristics, flora, and fauna of each biome, highlighting their ecological importance and the challenges they face due to human activities.

What is an ecosystem?

• A type of plant species

• A community of living organisms interacting with their environment

• A group of similar climates

• A large area with the same weather

Which biome covers the largest area on Earth?

• Forest

• Marine

• Desert

• Tundra

What percentage of known marine species live in coral reefs?

• 10%

• 25%

• 50%

• 75%

What is the main difference between marine and freshwater biomes?

• Animal size

• Salt content

• Temperature

• Plant species

Which animal is commonly found in the south pole?

• Polar bear

• Penguin

• Walrus

• Arctic fox

What is permafrost?

• A type of plant

• A layer of permanently frozen ground

• A type of animal

• A seasonal river

Which trees are dominant in colder forest latitudes?

• Broadleaf trees

• Palm trees

• Deciduous trees

• Evergreen trees

What is a savanna?

• A wetland area

• A dense forest

• A grassland with scattered trees

• A type of desert

Which biome has the greatest biodiversity?

• Desert

• Grassland

• Tundra

• Tropical Rainforest

What adaptation helps desert plants survive?

• Deep roots

• Bright flowers

• Large leaves

• Thorns or sharp spines