Population and Interactions Review
By Katelyn Owens
starstarstarstarstarstarstarstarstarstar
Last updated 7 months ago
14 Questions
4
1.
Categorize as abiotic or biotic
Categorize as abiotic or biotic
- Wind
- Tree
- Dragonfly (bug)
- Sunlight
- Rain
- Bunny
- Soil
- Deer
- Abiotic
- Biotic
3
2.
Match the definition and symbol to the correct symbiotic term
Match the definition and symbol to the correct symbiotic term
- Both organisms benefit
- +/-
- One organism benefits while the other is neither helped nor harmed
- +/0
- One organism harms another
- +/+
- Mutualism
- Parasitism
- Commensalism
1
3.
Cheetah killing a zebra is an example of
Cheetah killing a zebra is an example of
1
4.
What is death rate?
What is death rate?
1
5.
What is the emigration rate?
What is the emigration rate?
1
6.
What is the immigration rate?
What is the immigration rate?
1
7.
What is the birth rate?
What is the birth rate?
1
8.
Birth rate causes the population to
Birth rate causes the population to
1
9.
A population of beetles was about 2,000 in the year 2002. In 2004, the size of the population was 5,000. Which statement explains the change?
A population of beetles was about 2,000 in the year 2002. In 2004, the size of the population was 5,000. Which statement explains the change?
1
10.
When a population is at carrying capacity. The death rate is ….
When a population is at carrying capacity. The death rate is ….
1
11.
Between month 1 and 4, is the population
Between month 1 and 4, is the population
1
12.
Compare the birth rate to death rate from month 1 to 5
Compare the birth rate to death rate from month 1 to 5
1
13.
Scientists have identified the elephant as a keystone species in the African savanna ecosystem. One reason is that the elephant digs holes to access groundwater that other organisms use as well. If the elephant population declined, what do you predict would happen to the ecosystem over time?
Scientists have identified the elephant as a keystone species in the African savanna ecosystem. One reason is that the elephant digs holes to access groundwater that other organisms use as well. If the elephant population declined, what do you predict would happen to the ecosystem over time?
1
14.
As part of the ivory trade, the African elephant was killed for its tusks. The population of African elephants decreased from 26 million in the 1800s to just 415,000 today. What component would you need to add to the model to represent the interaction that caused the elephant population to change?
As part of the ivory trade, the African elephant was killed for its tusks. The population of African elephants decreased from 26 million in the 1800s to just 415,000 today. What component would you need to add to the model to represent the interaction that caused the elephant population to change?