Life Science Mid-Year Benchmark

Front

What is the base of an aquatic food web?

Back

Phytoplankton are the primary producers in an aquatic food web, serving as the base for various marine organisms.

Front

What role do fungi play in the rainforest ecosystem?

Back

Fungi help recycle nutrients by decomposing dead organic matter, returning essential nutrients to the soil.

Front

What is a unicellular organism that lacks a nucleus called?

Back

A Prokaryote is a unicellular organism that lacks a nucleus and membrane-bound organelles.

Front

What is a community in ecological terms?

Back

A community is all the different populations of organisms that live together in a specific area.

Front

Which biome is characterized by receiving less than 25cm of rain per year?

Back

The desert biome receives less than 25cm of rain annually.

Front

What is the definition of an ecosystem?

Back

An ecosystem is a community of living organisms interacting with their physical environment.

Front

What is the difference between a population and a community?

Back

A population consists of individuals of the same species living in an area, while a community includes all different species in that area.

Front

What are the primary producers in a terrestrial ecosystem?

Back

Plants are the primary producers in terrestrial ecosystems, converting sunlight into energy through photosynthesis.

Front

What is the significance of keystone species in an ecosystem?

Back

Keystone species have a disproportionately large impact on their environment relative to their abundance, helping to maintain the structure of the ecosystem.

Front

What is biodiversity?

Back

Biodiversity refers to the variety of life in a particular habitat or ecosystem, including the number of species, genetic diversity, and ecosystem diversity.