Pulmonary vein brings oxygenated blood to the heart from the lungs
Pulmonary artery take deoxygenated blood to the lungs
The Answer is D. Tidal power because the waves created from the bottom of the ocean floor, the wave's never stop coming .
The immune system helps guard against infection, protect from UV radiation, and regulate body temperature.
Answer: Resource partitioning
Explanation:
In order to make organisms of different species (competitors) coexist, limited resources are to be divided with a ecological area.
Organisms of same species could be made to live together, so as to reduce wastage of limited resources
Answer:
Earth is a dynamic planet; the continents, atmosphere, oceans, ice, and life ever-changing, ever interacting in myriad ways. These complex and interconnected processes comprise the Earth system, which forms the basis of the scientific research and space observation that we refer to as Earth system science.
Explanation: