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Chem semster test

QuestionAnswer
Which of the following statements is not correct Consumers get their energy directly from the Sun
What kind of organism obtains energy only from producers Herbivores
If an insect eats a plant and a bird eats the insect, about how much from the plant is stored in the insect for the bird to use 10%
Which gas makes up 78% of our atmosphere but can be used by plants only when transformed by bacteria first Nitrogen
What kind of natural disaster helps some Forest communities by allowing some trees to release their seeds by clearing away Deadwood, and by encouraging new growth? Fire
Where would an ecologist be least likely to go to study primary succession The Amazon rainforest
Which of the following is not a true statement about cellular respiration Sugar molecules are its primary products
Which of the following are photosynthetic organisms Freshwater algae
Consumers are organisms that Get solar or other energy indirectly
The energy consumed by organisms Can be stored in fat and sugar molecules
Succession is possible because New species make the environment less suitable for previous ones
Which of the following is an example of secondary succession Growth of plant after a forest is destroyed by fire
Which organism is likely to be in the bottom trophic level of a food chain Algae
What term is used to refer to the many feeding relationships that are possible in an ecosystem Food web
What type of vegetation would you expect to find an abandoned farm that has remained undisturbed for a hundred fifty years Tall mature oak trees
What type of succession occurs after a natural process such as a volcanic eruption or flood Secondary succession
Tropical rainforest are threatened by Deforestation and the trade of rainforest plants and animals
The distance north or south of the Equator, as measured in degrees, is called Latitude
If you visited a savanna, you would likely see Large herds of grazing animals, such as rhinos, gazelles, and giraffes
Deserts are Often formed on the dry side of mountains
Biomes with higher temperatures and less precipitation tend to have Shorter and less dense vegetation
Animal that live in the desert Are usually nocturnal
Adaptation of desert animals that help them survive in the hot, dry desert often include Searching for food at night
Adaptations demonstrated by plants in tropical rainforest include All the Above
Which of the following is an adaptation of coniferous trees in the taiga They have unique overall shape in order to accumulate snow, which acts the heavy is leading layer
The tundra Has a layer of soil that is permanently Frozen beneath the topsoil
Which of the following best describes a tropical rainforest Species of animals with specialized ways of surviving in order to avoid competition
The main factor that determines what type of plants grow in a biome is Both temperature and precipitation
Taiga is Forest biome dominated by coniferous trees, such as Pine, Fir, and Spruce
Biomes Are usually described by their vegetation
Grasslands, such as prairies of a North America, Are threatened by soil erosion because native grasses have been damaged or destroyed by plowing and overgrazing
Estuaries Are ecosystems where both freshwater and saltwater are present
Which of the following is not characteristic of salt marshes and mangrove swamps Both are dominated by Marsh grasses
In the _____ zone, the water is cool and dark. Benthic
What mainly distinguishes nekton from benthos One swims freely and the other often live attached to a hard surface
Two threats to Ocean ecosystems are All of the above
Which ecosystem has the highest level of salinity Salt Marsh
Estuaries are very productive ecosystems because they receive fresh nutrients from Rivers and oceans
Which organism produces most of the food in an aquatic ecosystem Phytoplankton
What are the two main types of freshwater wetlands Marshes and swamps
Which of the following is not characteristic of wetlands Wetlands are limited to Inland freshwater environments
Coral reefs are intricately shaped rock-like structures that are formed as a result of The secretion of calcium carbonate by tiny marine animals
Which of the following is a threat to coral reefs? All of the above
The types of organisms found in a pond or lake depend on All the Above
Why doesn't photosynthesis occur in deep ocean water? There is no sunlight
The majority of marine organisms are found in Shallow, Coastal Waters
As they flow down a mountain to flatter ground, Rivers generally become All of the above
What causes most Coastal pollution in the United States? Industrial Waste and sewage
In the _____ Zone, life is diverse and abundant. Littoral
Swamps are commonly found on Flat, poorly drained land
Which of the following statements is not correct? Riverton generally move faster, and their oxygen levels decrease, as they near the ocean
Which of the following is not an environmental function of wetlands? Increase runoff
Each of the following is an example of parasite except A cow in a pasture
The relationship between acacia trees and ants that live on them is an example of Mutualism
Which of the following is most likely cause a large number of density-independent deaths in a population? Winter storms
The density of a population is The number of individuals per unit area
Which of the following organisms has the highest reproductive potential Bacteria
The number of wild horses per square kilometer in a prairie is a horse populations Density
The difference between a predator and a parasite is that a predator Usually kills and eats its prey
Which of the following populations has a random dispersion? Solitary snakes in a desert
In which of the following relationships is neither species harmed? Commensalism
A true statement about parasitism is that parasites May cause their host to become more vulnerable to predators
Example of a population is All maple trees in a forest
A species of plant has exponential growth after it is introduced into an area where it has never lived. Which statement best describes exponential growth? Within a few years the population increases dramatically
Relationship between a Canadian lynx and a snowshoe hare an example of Predator and prey
Which of the following is one of the main properties used to describe a population? Number of individuals
Which of the following situations best describes the use of a renewable source? Building wooden furniture
During the _____ period(s), humans altered their habits. All of the above
The _____ was not a direct result of the Industrial Revolution. Over-hunting of large mammals
All of these fields of study contribute to environmental science except Linguistics
In which country is the population likely to be increasing most rapidly? Kenya
Using scientific information from chemistry and biology to devise a plan to clean up a lake and make it healthy again described Environmental science
Why is the world's loss of biodiversity a source of concern? Humans depend on other organisms for food and oxygen
A focus of environmental science not studied in ecology is the Influence of humans on the environment
During the Agricultural Revolution, Plants and animals were domesticated
_______ is a biodegradable material that becomes a pollutant if allowed to accumulate more rapidly than it can decompose Newspaper
The classification and collection of data that are in the form of numbers is called Statistics
The group that does not receive the experimental treatment in an experiment is the Control group
By examining ______, scientists can test predictions for situations in which is impossible or unethical to use experiments. Correlations
Scientists use statistics to Analyze data
In an experiment, the factor of interest is called the Variable
The average mass of a wolf in a pack of wolves is an example of Mean
A model of a dinosaur is an example of _____ model. Physical
The chance that an earthquake will occur in your town during the next year is example of Risk
The experimental method includes which of the following steps? Observing, hypothesizing, predicting, experimenting, and communicating results
Why are mathematical models important? All of the above
How did the Himalayan mountains form? Colliding tectonic plates
What are wind and water erosion not likely to affect? Tides
Which of the following is the most logically active region in the surface of the Earth? Boundaries between tectonic plates
Which of the following are producers of oxygen? Plants
The ozone layer is located in the Stratosphere
Large-scale atmospheric phenomena caused by air that is constantly in motion is known as Weather
What is the estimated temperature of Earth's inner core? 4,000 C to 5,000 C
The Richter Scale best describes the Magnitude of an earthquake
The molten rock that is found in the upper mantle is Magma
Which of the following is not one of the compositional layers of Earth? Mantle
Which of the following is not an ecosystem? Utility pole
The energy in most ecosystems comes from The Sun
The organisms most likely to belong in the same species are People at a football game
Which of the following statements about an organism's habitat is not true? most organisms can survive if they are taken away from their habitat
The community of a pond is made up of all the Populations of fish, insects, and other living organisms
Organisms can adapt Both to their physical surroundings and other organisms/ both A and B
Some organisms are more likely to survive because they All of the above
An organism is resistant to a chemical if it Has a gene that protects it from the chemical
Most scientists classify organisms into Six kingdoms
Which of the following animals is successful because it moves quickly, reproduce rapidly, and has a waterproof external skeleton? Ant
Created by: Kylieeagan