ecosystem
human impact
Graphs and data
biotic & abiotic
vocab
100
How does biodiversity affect the stability of an ecosystem?
biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play.
100
The action of clearing a wide area of trees for farmland or other uses
Deforestation
100
Explain why it was in the mice benefit to be on a restricted diet.
It benefited the mice because the calories were reduced.
100
What are biotic factors?
natural factors from living things
100
what is fitness in a population?
The ability to survive to reproductive age, find a mate and produce offspring.
200
How do plants and animals affect an ecossytem?
They go through processes and the actions they do allow each other to survive and this keeps the ecosystem alive.
200
What are "dead zones" and how are they created?
Dead zones are areas in the water where there is little to no oxygen and are toxic and polluted. They are created when fertilized soil and sewage seeps into water sources nearby.
200
What is the relationship between temp and activity of Mr. Ziggy?
The higher the temperature is the less animal activity there is.
200
What are abiotic factors?
natural factors that aren't living organisms
200
What is artificial selection?
It is when animals are bred by humans?
300
How does an ecosystem change when succession occurs?
The ecosystem starts the redeveloping and fixes the part where there was damage done after a certain amount of time.
300
How do humans impact the environment?
Pollution, deforestation, endangered species.
300
Which trait(s) decrease in frequency over time?
a. tan only c. tan and brown
b. brown only d. white and blue
D
300
How do abiotic factors affect the ecosystem?
Abiotic factors are natural but non-living. So natural weather disasters or climate change can affect the environment by destroying it or helping it.
300
What is sexual selection?
It is when an animal shows off to impress another animal to reproduce.
400
What does an ecosystem need to be healthy?
It needs plants and animals that are all in a cycle that allows each one to benefit from one another so there is balance in the ecosystem
400
How does deforestation affect the animals living in the area?
The animals will have no home leaving them vulnerable to predators. They won't have a stable food source and their chances of survival will decrease.
400
What does temperature have to do with gender and color?
The hotter it is the more females and the lighter it is.
400
How do biotic factors affect the environment?
Biotic factors are living organisms. So people and animals affect the environment by either helping or destroying it.
400
Why do cells divide?
Cells divide so living things can grow. When organisms grow, it isn't because cells are getting larger. Organisms grow because cells are dividing to produce more and more cells.