all living things are composed of cells
cells are the basic units of structure and function in living things
all cells are produced from other cells
Answer:
How is the endocrine system related to the nervous system in terms of its regulatory activity?
For one, the endocrine system uses chemical signaling (hormones, produced by glands) while the nervous system uses electrical signaling (neural impulses). The signal transmission of the nervous system is fast because neurons are interconnected, but the functions are more short-lived.
Explanation:
Answer:
As light intensity increases (distance between lamp and plant decreases) the volume of oxygen (or the rate of bubble production) increases. This indicates that the rate of photosynthesis increases with light intensity. However, at sufficiently high levels of light intensity, the rate oxygen evolution remains constant.
Answer: Estuaries
Explanation:
Estuaries are areas where freshwater streams or rivers merge with the ocean. This mixing of waters with such different salt concentrations creates a very interesting and unique ecosystem. Microflora like algae, and macroflora, such as seaweeds, marsh grasses, and mangrove trees (only in the tropics), can be found here.
Answer:
Plants fix carbon and release oxygen, and animals release carbon and use oxygen. Animals fix carbon and release oxygen, and plants release carbon and use oxygen. Animals fix carbon through respiration, and plants fix carbon through photosynthesis. Plants decompose fixing carbon, and animals decompose releasing carbon.