Ecosystem Dynamics and Water Cycle

Mr. Goya from National University Academy reviews key topics for the Unit 8 quiz and California standardized biology tests. The video covers symbiosis, mutualism, the water cycle, transpiration, oceans, biomes, primary producers, and ecological succession. Students are encouraged to take notes and prepare for their exams. The video concludes with a motivational message to finish the semester strong.

What is mutualism in the context of symbiosis?

• A relationship where one species benefits and the other is harmed

• A relationship where both species benefit

• A relationship where one species benefits and the other is unaffected

• A relationship where neither species benefits

Which of the following is an example of mutualism?

• A lion hunting a zebra

• A bee pollinating a flower

• A parasite living in a host

• A bird eating seeds

What process in the water cycle involves water moving from plant leaves to the atmosphere?

• Percolation

• Transpiration

• Evaporation

• Precipitation

Which process is primarily responsible for driving the water cycle?

• Ocean currents

• Gravity

• Sunlight

• Wind

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

• Two-thirds

• Three-fourths

• Half

• One-fourth

Which of the following is a primary producer?

• Lion

• Algae

• Shark

• Eagle

What is the role of pioneer species in an ecosystem?

• They are the last species to colonize an area

• They are the first species to colonize a new habitat

• They are species that never change

• They are species that only live in water

Which biome is characterized by having a temperate grassland area?

• Tundra

• Desert

• Savannah

• Temperate grassland

Which biome is known for having the highest diversity of species?

• Desert

• Savannah

• Tropical rainforest

• Tundra

What type of biome would you find in the central United States?

• Desert

• Tundra

• Temperate grassland

• Tropical rainforest