Which is an abiotic factor that helps determine the characteristics of a biome? (1 point)

• number of animal species
• amount of plant life
• amount of biodiversity
amount of precipitation

amount of precipitation

They grow very tall.

Cold temperatures cause many plants to become dormant.

a buffalo

How do the kapok trees of tropical rainforests compete for sunlight? (1 point)

• They have large leaves.
• They grow very tall.
• They provide a habitat for animals.
They have deep roots.

Why does competition for food among animals in temperate forests increase in winter months? (1 point)

• Cold temperatures cause many plants to become dormant.
• Cold temperatures cause many animals to migrate.
• Cold temperatures cause many plants to increase photosynthesis.
Cold temperatures cause many animals to store food.

Why do grasslands have few large trees? (1 point)

• Grasses and flowering plants crowd out the larger trees.
• Large trees cannot survive the hot temperatures in a grassland.
° Tall trees need more water than the grasses, so they are only found near rivers and streams.
Grasslands have a rocky terrain that does not allow trees to grow.

Which animal will a photographer take a picture of in North American grassland? (1 point)

• an ostrich
• a buffalo
• a gazelle
• a lion

Grasses and flowering plants crowd out the larger trees.