Answer:photosynthesis
Explanation:
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Answer:
The sympathetic nervous system.
Explanation:
The sympathetic nervous system prepares the body to respond quickly to external stimulation or to situations that require alertness or strength, such as situations that arouse fear, anger, excitement or shame (situations of "fight or flight"). In this type of situation, the sympathetic nervous system stimulates the heart muscles to increase the heart rate and thus increases the rate with which oxygen and nutrients are sent to the blood, dilating the bronchi of the lungs (increases oxygen retention ) and causes the dilation of blood vessels that supply the heart and skeletal muscles (increasing the blood supply). The sympathetic system innervates the sweat glands and when the body is under situations of anxiety or stress stimulates them causing perspire to occur.
Answer:
Plant cells and animal cells are both eukaryotic hence, they have many similar organelles. Common organelles are:
Cell membrane: the structure that separates a cell from exterior environment.
Nucleus: structure where hereditary material is present.
Ribosome: structure where proteins are made.
Endoplasmic Reticulum: associate in protein production
Golgi complex: structure where proteins are modified and packaged.
Vacuole: acts as a storage house for a cell
Cytoplasm: fluid in which all the organelles float.