Please answer correctly, as it will be graded. The subject of this course is ___________. - correct answer Environmental Science
The addition of a limiting nutrient to a body of water may lead to an algal bloom. What effect will this algal bloom have on the oxygen content of the water? - correct answer The algal bloom will cause first an
increase, then a sharp decrease in oxygen
If women delay child bearing, - correct answer the growth rate will decrease
The levels of complexity include, from least to greatest: - correct answer Individual--> population--> community--> ecosystem--> biosphere
______% of the world's most developed population consumes ______% of the world's energy - correct answer 20;58
A close interaction be between two different species, in which one species benefits and the other is unaffected, is called - correct answer commensalism
The change in genetic composition of a population over time is called: - correct answer evolution
A null hypothesis is used as a statement that an experiment must disprove. A scientist wished to test whether fish species A prefers cold water over warm water. Which of the following is the best null hypothesis for the experiment? - correct answer Fish A has no preference for cold water over warm water
Atmospheric convection currents are caused by - correct answer the unequal heating of the Earth by the Sun, and the tendency of warm air to rise Environmental justice is - correct answer a social movement that works toward equal enforcement of environmental laws in poor communities
Evidence of biodiversity is seen most directly in the - correct answer number of species in a region
Which type of species would be most vulnerable to environmental changes? - correct answer Niche specialists
A hypothesis must be - correct answer testable
What is a positive effect of upwelling? - correct answer it creates an area of high nutrient levels along the
coast
Which type of population distribution can enhance protection from predators? - correct answer clumped
distribution
An individuals ecological footprint is - correct answer a measure of the total amount of land required to the support that person's lifestyle
Organisms that eat dead or decaying matter are called - correct answer scavengers
An idea that has been repeatedly tested and confirmed by multiple groups of researchers is called a - correct answer theory
Nitrogen fixation is a process - correct answer by which organisms convert nitrogen gas into ammonia
Deforestation can result in - correct answer the rapid flow of water down mountains, leading to increased erosion and flooding
Which of the countries presents the highest infant mortality rate? - correct answer Tanzania