Ecology and Biomes 2024

A(n) __________ includes all living and non-living things in an environment.

• population

• niche

• abitotic

• ecosystem

Something that limits the size of a population.

• dependent variable

• control factor

• the x factor

• limiting factor

A large region characterized by a specific type of climate and certain types of plant and animal communities---

• population
• community
• biome
• ecosystem

The symbiotic relationship between a flower and the insect that feeds on its nectar is an example of

• mutualism because the flower provides the insect with food and the insect pollinates the flower.

• parasitism because the insect lives off the nectar from the flower.

• commensalism because the insect doesn't harm the flower, and the flower doesn't benefit from the relationship.

• predation because the insect feeds on the flower.

Which of the following lists the levels of organization in an ecosystem from the smallest unit to the largest?

• population, organism, community, ecosystem
• organism, population, ecosystem, community
• organism, community, population, ecosystem
• organism, population, community, ecosystem

A nonliving element in an ecosystem is an 

• animal
• abiotic factor
• biotic factor
• organism

The earth's coldest biome is the....

• Antartica
• Grasslands
• Tundra
• Freshwater

Biome with plants and grasses, but no trees.

• grassland

• desert

• forest

• arctic tundra

Biome with many different species of cacti and reptiles and very little rainfall.

• Desert

• Temperate Rainforest

• Tropical Rainforest

• Arctic Tundra

Type of forest biome near the equator; receives a lot of rain; temperatures are warm all year.

• desert
• tropical rain forest
• arctic
• temperate rain forest