Ecosystem

Vocabulary

100

Give an example of a biotic factor

Give an example of an abiotic factor

Label which is which

Biotic- plants, animals, (anything living)

Abiotic- sunlight, temperature, water, etc. (nonliving)

200

Define invasive species

Non-native and harms the environment

300

What is the difference between predator/prey relationships and parasite/host relationships?

Predators kill and eat their prey

Parasites do not typically kill their hosts

400

Define limiting factor

Something in the environment that prevents a population from growing because there isn't enough of it

500

Define biodiversity

the variety of life in an ecosystem

True/False

100

True or false: population growth is exponential when there are plenty of resources

true

200

True or false: Carrying capacity does not change. For example, if an ecosystems carrying capacity for deer is 20, it will always be 20

False- it can change when the amount of resources changes

300

True or false- to protect the environment, we should limit how much biodiversity there is

FALSE

400

True or false: the original energy source in all terrestrial (terrestrial means land) ecosystems is the sun

True

500

Barnacles will attach to whales, allowing them to be transported to different places. This does not help or hurt the whale.

True or false: This is an example of parasitism

(bonus 100 points, what is it an example of?)

False

Bonus- commensalism

Carrying Capacity

100

Define carrying capacity

The population that an ecosystem has the resources to support

200

Give 3 examples of limiting resources

Food, water, shelter, predators, disasters, etc.

300

Draw a graph that shows population growth of a species as it reaches its carrying capacity

picture

400

Wolves eat rabbits. If there is a disease that affects only rabbits, causing the rabbit population to decrease, what (if anything) will happen to the carrying capacity of wolves and why?

The carrying capacity would decrease because of less food (less rabbits).

500

What is the name of this type of growth curve?

https://docs.google.com/document/d/1qMZ2jbc3rTPy2-buIrL6C70g6L3uKLe19V1N3oDxXPQ/edit?usp=sharing

Logistic growth

Stability/Food webs

100

https://docs.google.com/document/d/1n9xqOLBBI7ZLXDGNA0nvfnwOiskDSbtLh8npGO9Yncc/edit?usp=sharing

population would increase

200

One forest has high biodiversity

Another forest has low biodiversity

There is a forest fire in both

Which forest (high biodiversity or low biodiversity) would recover faster?

high biodiversity

300

Which ecosystem has higher biodiversity?

Ecosystem 1: 10 oak trees, 5 squirrels, 3 eagles

Ecosystem 2: 10 maple trees, 5 bats, 3 osprey, 5 squirrels

ecosystem 2

400

See image-

https://docs.google.com/document/d/1mUZN3JbVmiXfeJfMI1M7k0urQim9YY84U000LlxkPAo/edit?usp=sharing

hawks population would decrease

500

Explain WHY higher biodiversity causes ecosystems to be more stable and better able to recover from disasters (floods, fires, etc).

because with more biodiversity it is more likely that the ecosystem will have what it needs to recover after the disaster.

Random

100

Is a dead mouse abiotic or biotic

biotic

200

How is a scavenger different from a predator?

Scavengers eat things that have already died

300

What is the difference between autotrophs and heterotrops?

autotrophs do photosynthesis 

heterotrophs do not- they eat 

400

Fungi and bacteria break down dead plants and animals, returning nutrients to the soil.

This makes fungi and bacteria ______________.

decomposers

500

Give an example of each:
Herbivore
Omnivore
Carnivore
Parasite
Decomposer

Herbivore- eats only plants
Omnivore- eats both animals and plants
Carnivore- eats only animals