animal✔ humanplant
Where did the pollution from the acid rain and factory in the virtual lab eventually end up?
Which statements are true about point and nonpoint source pollution?Human activity causes point and nonpoint source pollution.Only nonpoint source pollution affects abiotic factors in a watershed.Point source pollution affects only the part of the lake or river near it.Both point and nonpoint source pollution affect biotic factors in a watershed.Point pollution flows through the bodies of water in a watershed but not through its land.
Lake Mojave is an ancient lake that has dried up and no longer exists in the Mojave desert in California.Which environmental conditions may have occurred to cause the disappearance of the lake and the organisms that live in it? Check all that apply.decrease in rainfall in the Mojave desertdecrease in temperature in the Mojave desertdecrease in runoff that flows into Mojave lakeincrease in blocked streams that flow into Mojave lakeincrease in pollution that was deposited into Mojave lakeincrease in the nonnative plant population in Mojave lake
Which environmental change caused all populations of the biotics factors (algae, mosquito larvae, minnow, trout, and heron) to increase?
During the summer, when the land is brown and the grass is green, the population of mice decreases because mice are easily spotted by the organisms that eat them.How would this change affect the food web? Check all that apply.
Suppose this scenario was modeled in the lab. How would the populations of the biotic factors be affected? Check all that apply.
Which factors caused the rapid decline or decrease of the Sierra Nevada yellow-legged frog population? Check all that apply.fishfunguspesticidesUV radiationpollution
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How did the lab activities help you answer the lesson question: How do environmental changes affect both living and nonliving things in a watershed? What conclusions can you make based on your observations?
In the lab activity, I used a virtual watershed to demonstrate how pollutants enter and flow through the watershed. I constructed food chains to show how biotic factors are related. I also predicted and modeled how human activity affected the biotic factors in an ecosystem. Based on my observations, I can conclude that biotic and abiotic factors are closely linked and that human activity that changes the environment, like pollution, can affect all the other parts of an ecosystem in a negative way.
✔ Its population will increase.Its population will decrease.Its population will remain the same.
Which of these ideas did you include in your answer? Check all that apply.
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