Answer: A niche refers to the ecological role of organisms in its community.
Example snake.
Three niches of snake are:
1. Predators- they can act as pests control in the field (one of their sources of food is rats)
2. Prey- they can also be a source of food to other higher ranking species in the food web such as the eagle.
3. Contribute to the balance of the food web.
It regulates earth's surface temperature through radiative forcing and the greenhouse effect
Answer: a. precipitation (rain), person, wastewater, clouds, precipitation(rain).
Water cycle also known as hydrological cycle describes how water evaporates from the water body or surface of the earth, rises in the atmosphere as water vapor which forms clouds, clouds condenses in the form of rain, hence water comes back in the water body or earth surface.
Here, precipitation will result in accumulation of water on earth or water body, this water is utilized by person, the water is then converted into wastewater, the cloud formation takes place when water evaporates from waste water, these clouds condenses to cause precipitation.
What I know is that sickle-cell anemia is when red blood cells are sickle-shaped instead of disc-shaped and can't deliver enough oxygen to the cells in the body.
Both gymnosperms and angiosperms have vascular tissue that is specialized for transport of minerals, water, and organic compounds. Also, both gymnosperms and angiosperms have seeds. The only difference is that angiosperms have seeds hidden in the ovary while gymnosperms have seed on the surface of the scales of the cones.