Answer:
Plant cell
Explanation:
Plant cells are one of the only cells that contain both a cell wall and chloroplasts (used for photosynthesis).
The Tundra.. IT HAS THE COLDEST TEMPS.
People used vaccines to reduce the risk of infection by working with body as defenses to help them so this vaccines develop immunity to disease
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Answer:
Explanation: Guard cells in the plants prevent water loss from it in cases of soil dryness or high temperature by closing themselves. If this does not happen, water will keep leaving the plant by the process of transpiration in these harsh conditions and the plant will not have the important medium for the homeostasis process to continue.
PH Level, and food source such as sugar.