Investigating Ecosystems 1.1 a and b

What is an ecosystem? 

• producing food from sunlight
• animals that live in certain areas
• living and nonliving things that interact in an area
• a person who studies an environment

1.What are the two components of species diversity?

• Ecosystem Diversity and relative abundance

• Species richness and frequency of alleles

• Species richness and relative abundance

• Frequency of alleles and relative abundance

What is the definition of genetic diversity?

• The number & abundance of alleles in a population

• The number & frequency of alleles in a population and species richness

• The amount & frequency of alleles in a population

• The number & frequency of alleles in a population

What piece of equipment would we use to sample plants?

• pitfall trap

• pooter

• quadrat

• beating

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

• 15

• 12

• 18

• 6

• 5

Where a species of an organism is found in the environment and how it is organised , best describes?

• abundance

• distribution

• individual count

• percentage cover

The number of individuals of one species is:

• a community

• a population

• a niche

• an ecosystem

A student was randomly sampling to estimate a clover population. In 5 quadrats, they found 11, 8, 11, 9 and 1 clover plants. What is the average for these results?

• 8

• 9

• 11

• 40

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

• 100%

• 25%

• 50%

• 75%

What is a biological key used for and how would you create one?

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