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Term for organisms that cannot directly capture the sun's energy and make their own food?

Heterotrophs are organisms that cannot directly capture the sun's energy and make their own food. Instead, they rely on consuming other organisms or organic matter for energy. Examples include animals, fungi, and some types of bacteria.


How do unicellular organisms get oxygen?

Unicellular organisms can obtain oxygen through simple diffusion from their environment, such as from water in the case of aquatic organisms. This process allows the oxygen to pass directly through their cell membrane and into their cytoplasm where it can be used for cellular respiration.


What does the appendix has to do with inability to digest cellulose?

The human appendix is a vestigial organ that no longer serves a significant digestive function. It is not directly related to the body's ability to digest cellulose, which is a complex carbohydrate found in plants. Inability to digest cellulose is due to the lack of necessary enzymes in the human digestive system.


What is the difference between a direct or an indirect pathway for bioaccumulation?

In a direct pathway for bioaccumulation, organisms take in contaminants directly from the environment through processes like ingestion or absorption. In an indirect pathway, organisms accumulate contaminants by consuming other organisms that have already bioaccumulated the contaminants.


What are chemosynthetic organisms?

Chemosynthetic organisms are organisms that can produce energy through chemical processes rather than relying on sunlight for energy, like photosynthetic organisms. These organisms are often found in extreme environments, such as deep-sea hydrothermal vents or caves, where sunlight is scarce. Examples of chemosynthetic organisms include certain bacteria and archaea.