Ecology Review-Biology

Front

What type of symbiotic relationship exists between a remora fish and a shark?

Back

Commensalism

Tags

NGSS.MS-LS2-2

Front

Why do organisms at higher trophic levels have less biomass than those at lower trophic levels?

Back

Organisms at higher trophic levels have less energy available to them than organisms at lower trophic levels.

Tags

NGSS.MS-LS2-3

Front

What is the process called when wild grasses and weeds begin to grow after a wheat field is cleared?

Back

Secondary succession because soil is already present.

Tags

NGSS.MS-LS2-4

Front

In biological organization, what does the term 'organism' refer to?

Back

An individual living entity that can react to stimuli, reproduce, grow, and maintain homeostasis.

Tags

NGSS.MS-LS1-5

Front

What is a community in ecological terms?

Back

A community is a group of different species that live together in one area.

Front

Define the term 'trophic level'.

Back

A trophic level is a position in a food chain or food web, defined by how organisms obtain energy.

Tags

NGSS.MS-LS2-3

Front

What is the primary source of energy for most ecosystems?

Back

The primary source of energy for most ecosystems is sunlight.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Front

What is the difference between primary and secondary succession?

Back

Primary succession occurs in lifeless areas where soil has not yet formed, while secondary succession occurs in areas where a disturbance has destroyed an existing community but soil remains.

Front

What role do decomposers play in an ecosystem?

Back

Decomposers break down dead organic material, returning nutrients to the soil and making them available for plants.

Tags

NGSS.MS-LS2-3

Front

What is the significance of biodiversity in an ecosystem?

Back

Biodiversity increases ecosystem resilience, productivity, and stability.

Tags

NGSS.MS-LS2-5