All the organisms that live and interact in an ecosystem

What is a square called that we use to sample populations?

Limpets were found in 25 out of 50 quadrats. What percentage of quadrats contained limpets?

These four 1m² squared quadrats were place in a 8m² garden. Estimate the total population of flowers in the whole garden.

This 1m² squared quadrat was place in a 3m² beach. Estimate the total population of crabs in the whole beach.

The method used to investigate population distribution is:

Suggest how the distribution of weeds on a field changes as you move away from a path.

Why do scientists use sampling techniques to gather population data rather than counting everything?