All organisms are connected in the ecosystem. From where do autotrophs get their energy?

There are organisms that make up the FBI (fungi, bacteria and invertebrates—worms and insects). They are all living things that get energy by eating dead animals and plants and breaking down wastes of other animals. Which of the following are consumers that get their energy by breaking down dead organisms, thus sending nutrients into the soil?

Respiration, excretion, and decomposition release the carbon back into the atmosphere or soil, continuing the cycle. The ocean also plays a critical role in carbon storage, as it holds about 50 times more carbon than the atmosphere. There are autotrophs on land and sea. What is the function of those autotrophs in the carbon cycle?

Decomposers are the organisms that break down decaying organisms. They are connected to all other organisms in the cycle of life. What is the role of decomposers in the carbon and nitrogen cycles?

If elements are to be recycled in nature, which organisms must be present?

The species that make up an ecosystem are connected in complex “food webs” of eater and eaten. When one species disappears, its predators can no longer eat it and its prey are no longer eaten by it. Changes in these populations affect others. Such impact ‘cascades’ (passed on) can be unpredictable and sometimes catastrophic. The removal of which of the following types of organisms would have the greatest negative effect on an ecosystem?

An increase in carbon dioxide levels could be one of the reasons why you feel drowsy, have throbbing headaches, or struggle to be as productive. Though the odorless gas is safe in minor amounts, the levels can go up when there is reduced ventilation, especially in our homes or offices. There many ways to reduce CO2 in our atmosphere at home and in nature. What process takes CO2 out of the atmosphere?

What is an organism called that produces its own food supply from inorganic compounds (glucose) ?

Living things have to hunt, gather and eat their food in order to survive. Which of the following is an organism that needs to eat other organisms to obtain energy?

Any group of living and nonliving things interacting with each other can be considered as an ecosystem. What are the living portions of the ecosystem referred to as?

All parts of an ecosystem are interconnected and therefore affect each other. What are the abiotic factors in this image?

This cycle shows the continuous movement of water from the earth into the atmosphere. It is a complex system that includes many different processes. What is this cycle called?

The roots of the plants absorb the water and push it toward leaves where it is used for photosynthesis. The extra water is moved out of leaves through stomata (very tiny openings on leaves) as water vapor. This process is similar to evaporation. What is it called when plants give off water vapor as a waste product?

Which organelle is responsible making food (glucose) using sunlight?

The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water is called photosynthesis. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct. Which of the following are products of photosynthesis? Select all that apply.

The essential life processes include nutrition, metabolism, transportation, reproduction, excretion, and respiration. They work together and result in the overall growth and development of the organism. One of those major processes that allows us to perform the above life processes is cellular respiration - what is the overall purpose of cell respiration?

Recall that an organelle is a subcellular structure that has one or more specific jobs to perform in the cell, much like an organ does in the body. Which organelle is responsible for releasing energy in eukaryotic cells?

Deforestation is the purposeful clearing of forested land. Throughout history and into modern times, forests have been razed to make space for agriculture and animal grazing, and to obtain wood for fuel, manufacturing, and construction. Deforestation has greatly altered landscapes around the world and the ecosystem and atmosphere. Does deforestation cause an increase in atmospheric carbon dioxide?

When fossil fuels are burned, they release gases into the atmosphere, which contribute to the formation of smog and acid rain. Burning fossil fuels has raised the concentration of whar gas into the atmosphere?