Photosynthesis
Plants use this energy source from the Sun to begin photosynthesis
What is sunlight (light energy)?
Organisms use food to make chemical energy in their bodies through this process.
What is cellular respiration?
These organisms make their own food and are always at the lowest trophic level.
What are producers?
In an ocean food chain, sharks eat fish and fish eat phytoplankton. If the shark population suddenly drops, the phytoplankton population will most likely do this.
What is increase (fewer fish are feeding on them)?
Decomposers play this role in an ecosystem.
What is breaking down dead organisms and waste?
Plants take in these two substances to make their own food.
What are carbon dioxide and water?
This is the energy molecule released during cellular respiration that organisms use to live and grow.
What is ATP?
Producers are at the lowest trophic level because they do this.
What is convert light energy into chemical energy?
Extra rainfall led to more tree growth and more seeds and acorns, so a forest’s red squirrel population did this.
What is increase (more available food)?
Soil, air, and water are this type of part of an ecosystem, and they provide matter to the living parts.
What are nonliving parts?
This gas is released when plants rearrange carbon dioxide and water during photosynthesis.
What is oxygen?
Glucose and this gas are the two reactants in cellular respiration.
What is oxygen?
In an energy pyramid, energy enters the system as this and leaves the system as this.
What are light energy and heat?
Grey squirrels move into a forest and eat the same acorns and insects as the red squirrels. The red squirrel population will most likely decrease because of this.
What is increased competition for food (resources)?
Matter and energy in an ecosystem are neither created nor destroyed. This one word describes them.
What is conserved?
This sugar is the product of photosynthesis that stores chemical energy for the plant.
What is glucose?
These are the products of cellular respiration.
What are carbon dioxide, water, and energy (ATP)?
In the food chain plant → hare → fox, the fox’s energy originally came from the Sun through this process.
What is photosynthesis?
A reduction in resources can have this effect on competition and reproduction rate.
What is increase competition and decrease the rate of reproduction?
An organism gets the matter it uses for growth from this source.
What is the food it eats (matter from food is rearranged by chemical reactions)?
Of oxygen level, light intensity, sugar concentration, and starch concentration, this has the greatest effect on the rate of photosynthesis.
What is light intensity?
A glucose molecule (C₆H₁₂O₆) is broken down during digestion. This many of its carbon atoms are still present after the reactions.
What is 6 (atoms are conserved)?
A gazelle eats grasses and is eaten by cheetahs and lions. This is its role in the ecosystem.
What is a primary consumer that helps control the grass population and provides energy for predators?
In a pond, the dissolved oxygen level drops steadily over a year. The fish population will most likely do this.
What is decrease?
These are the elements that are rearranged to make glucose in plants.
What are carbon, hydrogen, and oxygen?