Ecosystem Unit Flashcard

Front

Biodiversity

Back

A measure of the amount of different species in a habitat

Front

Keystone species

Back

A species on which other species in an ecosystem largely depend, such that if it were removed, the ecosystem would change drastically.

Front

In the food chain: plant ---> cricket ---> mouse ---> hawk, which organism is the tertiary consumer?

Back

Hawk

Front

In feeding relationship models like food chains and food webs, the arrow points towards

Back

who gets energy

Front

Organisms that eat both plants and animals are categorized as

Back

omnivores

Front

Which organisms are producers in this food web?

Back

Tree, Shrub, Grass

Front

Which organism is an apex predator in this food web? Options: Grass, Grasshopper, Shrew, Hawk

Back

Hawk

Front

The graph below shows the changes in the size of a fish population over a period of time. The dashed line on the graph represents the

Back

carrying capacity of the environment

Front

Calculate the rate of change for this Red Wolf population from 1989, when there were 20 wolves, to 2005, when the population had risen to 125.

Back

6.5 wolves per year

y2 - y1

x2 - x1

Front

Describe at least 2 factors that can limit a species’ carrying capacity.

Back

1. 1. Availability of resources like food and water. 2. Predators

2. 3. Amount of Space