Aristo was riding in a car and noticed a pond that was covered in algal blooms due to excess phosphorus in the water. Which of these other features in the landscape could be the reason for the high levels of phosphorus?
A Russian citizen has illegally obtained a Siberian tiger and is trying to sell the tiger’s fur in the United States. What treaty does this violate?
A biologist counts the number of zebras in a population each year, and notices an increase in the zebra population. Which describes the biologist’s actions?
Which type of process occurred in the ecosystem that was affected by the 1988 fires in Yellowstone Park, which destroyed most of the vegetation but left the soil intact?
The figures refer to a herd of water buffalo. Birth rate is equal to 35 Death rate=7 Immigration=4 Emigration=17 What is this population growth?
What is likely to happen to a healthy population that is experiencing exponential growth?
Many organisms depend on the land as a food source. Seasons can affect the amount of food that is available to these organisms. How would a long, cold winter most likely affect a population of deer?
Which is most likely a source of air pollution?
A scientist measured an increase in nitrous oxide in the atmosphere. This increase would result in
In one species of bird, there are three varieties of feather color. What is this an example of?
Which best describes the impacts: water storage, clean energy, and flood prevention?
Pandas eat bamboo for energy. What are pandas?
What would happen if there were no condensation stage in the water cycle?
Poison dart frogs live in the rainforest. They produce a poison by eating toxic fire ants. The only known predator is a snake, Liophis epinephelus . Which is most likely a density-independent factor that affects the poison dart population in the rainforest?
The overall population of a species decreased. What could have occurred to make this happen?
Why is water considered to be abiotic?
Actinobacteria sp. are fermenting organisms, which do not require oxygen to survive. These organisms break down organic material and convert it to inorganic material. Which part of the carbon cycle does this describe?
Which of these could result in the extinction of a species?
A forest fire destroys an area. A small population of trees and a large population of birds are both affected. Which type of limiting factor causes this?
Which of these would be a result of eutrophication of a lake?
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