Answer:
Its A
Explanation:
It takes about 4 years for light from this star to reach earth. Depends on the the Distance of the star. As our sun is 149.6 million km away from the Earth it takes total 8 minutes 20 seconds.
It takes light 8 minute to reach from surface of sun to earth.
However, light produced in the core of the sun takes thousands to millions of years to get to the surface.
A light-year is the distance light travels in one Earth year. One light-year is about 6 trillion miles (9 trillion km).
Protists obtain food in 3 ways. They produce their own organic molecules, ingest, and absorb. Ingestive protists ingest food, or engulf bacteria. These protists extend their cell wall and cell membrane forming a food vacuole around the food item. Inside the food vacuole, enzymes digest the food. Absorptive protists on the other hand, absorb food molecules across their cell membrane which takes place through diffusion. Absorptive protists play a key role in decomposition. They are considered as important decomposers. Major producers like photosynthetic protists use light energy to manufacture their own food.<span>
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An organism that lives in or on an organism of another species (its host) and benefits by deriving nutrients at the other's expense; So basically, what you’ll be getting at is C, only harms another organism.
Yes, I believe it's <span>A. must be testable. So it can either be proven or disproved.
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Brain is protected by skull,blood brain barrier for filtration,cerebrospinal fluids that cushion brain and three membranes called duraarchnoid and pia mater
