Interactions In EcoSystems Test

This statement suggests that all animals are consumers. In other words, animals are organisms that obtain their energy by consuming other organisms or organic matter. This is in contrast to plants, which are typically producers, as they produce their own food through photosynthesis. Therefore, the correct answer is animals.

Energy flows through an ecosystem from a producer, such as plants or algae, to a herbivore. Producers convert sunlight into chemical energy through photosynthesis, and herbivores consume these producers to obtain energy. This transfer of energy is the basis of the food chain, as herbivores are then consumed by carnivores and omnivores, allowing energy to be passed along the ecosystem.

The statement is expressing that energy does not disappear. This means that energy cannot be created or destroyed, but it can only be transformed from one form to another. This is in accordance with the law of conservation of energy, which states that the total energy of an isolated system remains constant over time.

Decomposers play a crucial role in ecosystems by breaking down waste and dead matter. They break down organic material into simpler forms, such as nutrients, which can then be recycled back into the ecosystem. This process helps to release essential nutrients and minerals back into the soil, making them available for other organisms to use. Without decomposers, dead organisms and waste would accumulate, leading to a buildup of harmful substances and a lack of resources for other organisms.

When someone spreads pesticide to control the insect population, it is likely to have a negative impact on the bird population. Birds depend on insects as a food source, so if the insect population decreases due to pesticide use, the birds will have less food available to them. This will lead to a decrease in the bird population as they struggle to find enough food to survive.

Carnivores obtain energy by eating animals. Carnivores are organisms that primarily feed on the flesh of other animals. They have adapted to have sharp teeth and claws to capture and kill their prey. By consuming the tissues of other animals, carnivores obtain the necessary nutrients and energy to survive and thrive.

The greatest amount of energy is in the plant. Plants are primary producers in the food chain, meaning they convert sunlight into energy through photosynthesis. This energy is then transferred to herbivores like rabbits, who consume the plant. As energy moves up the food chain, each level loses some energy, so the greatest amount of energy is always found at the bottom of the chain, in this case, the plant.

The algae help the corals make a hard outside coating. This is because the algae produce calcium carbonate, which is used by the corals to build their hard exoskeletons. The algae also provide the corals with oxygen and remove waste products, further aiding in the growth and maintenance of the hard outside coating.