Q: Which of the following represents a population?
A: all of the black-eyed Susans (a specific species of plant) in a 30-acre prairie
Q: ____________ are a part of the biota in a desert.
A: Are transitional regions between ecosystems
"Q: Two species can live in the same habitat, but they CANNOT occupy the same niche because"
A: one would exclude the other through competition.
"Q: Temperature, wind, and salinity are all examples of _______. "
"Q: You sit comfortably in your room studying and notice that the air temperature is fluctuating considerably. Perhaps the air conditioning system is not well regulated. Sometimes it gets too hot and you sweat while other times you get so cold that you shiver. When you are sweating or shivering, you are exhibiting your "
A: limits of tolerance.
"Q: In the Appalachian Mountains, several species of salamander live in or near a stream. The largest species lives in the stream and along its edges, a smaller species lives on land within a meter or two of the stream, and a smaller species lives about 3-5 meters away from the stream. In this "
A: different niches within the same habitat.
Q: A compound is always a
Q: The environment can be thought of as four systems or spheres. These are _______.
"A: the biosphere, the lithosphere, the atmosphere, and the hydrosphere"
Q: Atoms are the smallest components of elements that
A: have the element's properties.
Q: Most organisms use water in
A: liquid form.
Q: Living organisms draw their essential elements from
"A: the atmosphere, lithosphere, and hydrosphere."
Q: The First Law of Thermodynamics states that _______.
A: energy is neither created nor destroyed
Q: What is a waste or by-product of photosynthesis?
Q: The chemical energy stored in the molecular bonds of coal are an example of _________ energy.
Q: The burners on an electric stove convert
"A: electricity into heat, which cooks the food."
"Q: In the summer, the heater on an automobile still works well, even though you do not need it. This is because the heater in a car draws on surplus heat generated when gas is used to power the engine. This extra heat, wasted in the summer, is produced as a result of the "
A: second law of thermodynamics.
Q: Which of the following processes reduces entropy?
"Q: Ultimately, the sunlight energy that strikes Earth is "
A: lost into space.
"Q: Some farmers in the Midwest rotate their crops from year to year, switching from soybeans to corn on the same fields. What is one of the advantages of doing this? "
A: The corn crop benefits from reactive nitrogen added to the soil by the soybean crop.
"Q: The carbon, phosphorus, and nitrogen cycles can be collectively referred to as ____________ cycles. "
Q: Which of the following is true?
"A: Energy flows, and nutrients cycle."
Q: Which of the following would most likely cause the greatest harm to wild Giant Panda populations in China?
A: the introduction of beetles that eat bamboo
"Q: To promote crop growth, a farmer is most likely to apply solutions to the soil that contain "
A: nitrogen or phosphorus.
Q: The transitional region between ecosystems is known as _____________.
A: an ecotone
Q: Organisms are classified as follows:
"A: kingdom, phylum, class, order, family, genus, species."
Q: The biosphere contains:
"A: ecosystems, communities, and populations."
Q: What would be the broadest approach to an ecological issue?
A: landscape ecology
"Q: Compared to all of the organisms in a phylum, organisms that share the same family "
A: share a more recent common ancestor.
Q: Most organisms living in a desert community are
A: well adapted to the heat and dry environment.
Q: Which one of the following best illustrates a landscape?
A: a river flowing past fields and forests in Yellowstone National Park
"Q: Susie gave her houseplant too much water, and it died. The water is an example of a _______. "
"A: limiting factor, In this case, too much water limited Susie's plant from growing and thriving."
"Q: In Lake Michigan, resources would include "
A: light penetration through the water.
"Q: In a greenhouse, it would be best to position a plant so that its exposure to sunlight would be "
A: within its optimal range.
"Q: Which of the following includes all of the others; hydrosphere, biosphere, lithosphere, atmosphere? "
"A: The biosphere includes the lithosphere, atmosphere, and hydrosphere."
Q: Earth's crust
Q: In a chemical reaction
A: atoms are rearranged to form different kinds of matter.
Q: Fog is a component of the
Q: Watering and fertilizing plants in your home adds components of the
A: lithosphere and hydrosphere.
"Q: With few exceptions, inorganic compounds do not have "
A: carbon-hydrogen bonds or carbon-carbon bonds.
Q: An oxygen-free environment and organisms that can live there are termed _______.
Q: What is the universe made up of?
A: matter and energy
"Q: Which process breaks down organic molecules, thus releasing energy required for work? "
A: cell respiration
"Q: An average person might consume 2,000 Kilocalories of food in one day. This is enough energy to heat up how many 2-liter bottles of liquid water from 0 degrees Celsius to 100 degrees Celsius (just reaching the boiling point of water, but not turning the water into steam)? "
Q: When a windmill turns to generate electricity the amount of kinetic energy input in the process
A: is more than the amount of electrical energy produced.
Q: Consumers that eat plants rely upon
A: chemical energy stored in organic molecules produced by photosynthesis.
A: flows through and nutrients cycle within ecosystems.
Q: Fixing nitrogen refers to _______.
A: converting it to chemical forms that plants can utilize
Q: Imagine you are a farmer and your pond has become eutrophic. What would be most likely to solve this problem?
"A: Eutrophication is caused by an excess of nutrients (mostly nitrogen and phosphorus). Thus, reducing the amount of fertilizer you use on nearby crops would likely reduce the chance of eutrophication in your pond."
Q: Denitrification in sewage treatment systems requires
A: an anaerobic environment.
Q: Which of the following is an abiotic factor?
"Q: ""All individuals that can interbreed and produce fertile offspring"" is the biological definition of _______. "
A: a species
Q: Which of the following is not a major factor determining the natural distribution of giant pandas on Earth?
A: the success rates of giant panda captive breeding programs
Q: Which one of the following characteristics is most useful in identifying separate species? Closely related but separate species do not
Q: Which of the following represents an abiotic component of a forest community?
A: water trickling along a small stream
Q: Most ecosystems
A: grade into other ecosystems in regions called ecotones.
"Q: On a vacation, you spend much of the day relaxing on an ocean beach soaking up the sun. The beach where you are spending your time is a good example of "
A: an ecotone.
Q: The number of elk available to wolves in Yellowstone National Park is an example of _____________.
"A: A resource is any factor consumed by organisms, including food."
Q: Which of the following statements is true regarding limiting factors?
A: The optimal range for a limiting factor fits within the broader range of tolerance.
"Q: Nina gets a new baby turtle from a friend, and is told to feed it worms. For the first few months, the turtle seemed to grow fine. But as time passed, the turtle's shell appeared soft and fragile. Someone suggested that the turtle might not be getting enough calcium in its diet. If this is true for this turtle, dietary calcium is "
A: a limiting factor.
"Q: Uncertain about the best way to keep his new lizard alive, Jerome places a heat lamp at one end of the long lizard cage. Over several days, Jerome notices that the lizard tends to sit in a certain place when the lamp is on. The lizard's selection of a particular place to stay represents its "
A: temperature optimum.
"Q: Because it contains carbon-hydrogen and carbon-carbon bonds, glucose is an example of a(n) __________ compound. "
A: Organic molecules may contain carbon-hydrogen and carbon-carbon bonds.
Q: Chemical compounds that make up tissues of living organisms are referred to as _________.
Q: During sublimation
A: water changes from solid to gaseous forms.
"Q: The muddy Mississippi River, transporting soils that have eroded from farm fields, represents a mixing of the "
A: lithosphere and hydrosphere.
Q: The Second Law of Thermodynamics states that _______.
"A: when energy is converted from one form to another, some of the energy is converted to heat"
Q: The conversion of light energy into chemical energy by photosynthesis is _______.
"A: relatively inefficient, with less than a 10% level of energy conversion"
Q: Which of the following best represents potential energy?
A: a charged battery in a flashlight
Q: Perpetual motion machines without an additional energy input cannot exist because
"A: in any energy conversion, some energy is lost."
Q: Which of the following is a product of photosynthesis?
Q: Cell respiration and photosynthesis both require
"Q: If you had a garden, which of the following would have the largest impact on the carbon cycle? "
"A: Driving to the store would involve burning a fossil fuel, which would release carbon dioxide and thus have the largest impact on the carbon cycle."
Q: What do biogeochemical cycles illustrate?
A: recycling of elements in ecosystems
"Q: On land, the carbon used today in photosynthesis to form carbon atoms of plant tissues is mostly returned to the air because of "
"A: respiration in plants, animals, and organisms in the soil."
Q: One researcher suggests that large amounts of carbon dioxide could be removed from the Earth's biogeochemical cycles by
A: adding iron to some parts of the deep ocean to encourage the growth of phytoplankton.