Respiration and Photosynthesis
This is respiration without oxygen.
What is anaerobic respiration?
These organisms make up the first trophic level of a food chain.
What are autotrophs or primary producers?
This type of pyramid shows the mass of each individual x the number of individuals at each trophic level.
What is a pyramid of biomass?
This is the buildup of a pesticide in an organism over a period of time.
What is bioaccumulation?
This occurs at dawn or dusk when a plant is maintaining itself, neither adding biomass or using it up to stay alive.
These are the waste products of aerobic respiration.
What are water and carbon dioxide?
In a food chain or web, arrows point toward the species that consumes the other, which shows this.
What is a transfer of biomass and energy?
A pyramid of numbers shows the number of organisms at each trophic level at any one time. This is more informally known by this phrase.
What is "the standing crop"?
This is the concentration of a pesticide through the food chain, trophic level by trophic level.
What is biomagnification?
Bacteria and fungi secrete enzymes that break down organic matter, performing this valuable service to the environment.
What is decomposition?
This is the correct trophic term for producers (green plants) which make their own food.
What are autotrophs?
These are the organisms in a food chain which feed directly on primary producers.
What are primary consumers or herbivores?
This pyramid shows a flow of energy or biomass through each tropic level over a period of time.
What is a pyramid of productivity?
The organisms in this region of the world have the highest concentrations of pesticides in their bodies.
What is the Arctic circle?
This type of species may be difficult to assign to one particular trophic level.
What is an omnivorous species?
These organisms make their own food from ammonia, hydrogen sulfide or methane and do not require sunlight.
What are chemosynthetic organisms?
Animals such as snails, slugs, blowfly maggots and vultures are nature's custodians and are usually called by this scientific designation.
What are detritivores?
This is why a pyramid of can vary with a season or year.
What is the fact that pyramids of numbers and biomass are snapshots in time?
These three factors are the reasons for pesticide contamination in ecosystems to be devastating in food chains.
What are the concentration of toxins in food chains, the limited length of food chains and the vulnerability of top carnivores?
This is the chemical name for Roundup, an herbicide sold by the Monsanto Corporation.
What is glyphosate?
These components of respiration spell out the acronym MRS GREN
What are movement, respiration, sensitivity, growth, reproduction, excretion and nutrition?
This is the scientific designation for organisms which are the top level in a food chain or food web.
What are tertiary consumers?
Productivity values are these rates versus the values of the other pyramids.
What are rates of flows over time versus stores existing at one particular time?
This hermaphroditic condition in animals is often linked to chemical pollution.
What is imposex?
These small organisms suspended in water have a very high ration of surface area to volume, meaning that they easily absorb pesticide from water.
What are plankton?