Answer: D Recreation
Explanation:
camping and hiking are recreational activites so D is the correct answer
Wetlands improve water naturally, flood protection, the shorelines erosion control, and could be used for recreation in someway. - sorry i don’t really know that much about wetlands
Natural variation provided the phenotypes that natural selection then acted on, over time causing evolution
Answer:
When adrenaline is released, it mediates a positive feedback loop.
Flagella and cilia have the exact same structures and functions, and the names merely indicate how many are present on a given cell. When found singly or in a pair, these cell protrusions are called flagella<span>.</span>