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Plant cells contain a cell wall which causes them to be more rigid in structure, whereas animal cells only contain a cell membrane.
In addition, plants contain chloroplasts, an organelle that allows the cells to undergo photosynthesis to produce energy. Animal cells, on the other hand, only contain mitochondria for cellular respiration.
Answer:
Astrocytes
Explanation:
Astrocytes are the most abundant cells in the central nervous system that twine around nerve cells supporting the brain and spinal cord. They perform many functions; such as providing the nuerons with nutrients, control the blood brain barrrier and blood flow. Astrocytes are basically responsible for maintaining the central nervous system homeostasis.
Answer: low frequency & low energy
Explanation:
All matter whether solid, liquid, gas has a chemical formula or elemental symbol.
Filtration may work, there are many types of filters capable of filtering specific types if compounds.
