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1st Hour Final
Terms in this set (50)
Which of the following is the ultimate source of energy for the pyramid below?
Which level in the pyramid #1 has the SMALLEST number of organisms?
Any energy lost in the pyramid above is lost as
Which level in the energy pyramid above gets the LEAST amount of usable energy?
A finch that eats only worms and insects would be classified as a(n) what type of heterotroph?
In the succession diagram below, which stage would be MOST stable?
The greenhouse effect is
A natural phenomenon that maintains the Earth's temperature
Human well-being is tied to biodiversity because
Humans are part of the same food webs of energy cycles that a great variety of organisms share
What is the primary reason the large-scale spread of zebra mussels (an invasive species) concerns scientists?
They will outcompete the native mussels
Researchers have seen a decrease in the number of different fish species in the last 50 years. This is an example of a loss of what?
Matter can recycle through the biosphere because
Biological systems do not use matter, they transform it
Which statement best describes the population in the leveling off part of the curve below
The population has reached the # of organisms the habitat can support
Using renewable resources while ensuring that they are not depleted is a practice called
Depletion of nonrenewable resources us often a result of an increase in what species' population?
An increase in Earth's average temperature from the buildup of a carbon dioxide and other gases is called
Why are fossil fuels nonrenewable?
They require hundreds of millions of years to form
In the food web below, a continue decrease in the grasshopper population will most likely cause a decrease in what other populations?
Owls and birds
What is one way to limit deforestation?
Grow + harvest trees from farms
One way humans could have a positive impact on the local environment is to
Use renewable resources
Why is a mushroom a heterotrophs?
It obtains it's nutrients from the environment
Organisms that cannot make their own food and must obtain energy from the foods they eat are called
Information gathered from observing a plant grow over a two-week period results in
You state the presence of water could accelerate the growth of bread mold. This is a(n) ___ in the scientific method
A controlled experiment allows the scientist to isolate and test how many variables?
An organ system is a group of organs that work together to do what?
To perform a specific function
A researcher is conducting an experiment to test the effectiveness of three different brands of fertilizer to see which increases plant growth most. In the experiment, she will apply a different brand of fertilizer to each of three plants. Which would be the most appropriate control for the 4th plant?
A plant without any fertilizer
Look at the picture below. A student does an experiment with 3 identical plants. Each plant gets a different color of light. What question can this experiment answer?
Which color of light is best for growing plants
The process by which organisms keep their internal conditions stable is called
An experiment performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid (water, apple juice, or milk). Each plant receives the same amount of sunlight, soil, and liquid. In this investigation, what is the independent variable?
Type of liquid
What is the dependent variable in the previous investigation?
Amount of plant growth
A monosaccharide is what type of organic molecule?
Which macromolecule is the main source of energy for living things?
The energy to perform actions, as well as the materials from which the body cells and tissues are made, comes from
Substances needed by the body for growth, repair, and maintenance are called
Proteins are made from monomers (subunits) called
Which macromolecule is responsible for growth and repair?
All living things contain which element?
Which macromolecule is responsible for storing and transmitting genetic information?
Which is an organ of the digestive system?
Water extracted from digested food in the body happens primarily in the
What might be the result if food moves through the large intestine too quickly?
What enzyme found in saliva breaks the chemical bonds between the sugar monomers (subunits) in starches?
Photosynthesis uses sunlight to convert water and carbon dioxide into
Oxygen and sugar
If carbon dioxide is removed from a plant's environment, what would you expect to happen to the plants production of sugar?
Fewer sugars produced
What three things are released during cellular respiration?
Carbon dioxide, water, and energy (ATP)
Cellular respiration is an aerobic process because it requires
Unlike photosynthesis, cellular respiration occurs in what types of cells?
Plant and animal cells
Solar energy is converted to chemical energy through the process of
Which gas is forming in the test tube shown below (photosynthesis experiment)?
Which organelles help provide the cell with energy?
Chloroplasts and mitochondria
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