<span>b they could eat unicellar organisms
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Multicellular organisms arose because of the process called endosymbiosis. The endosymbiosis theory posits that other unicellular organisms ate other organisms which has benefitted them into processing new mechanisms and functions.
A Eukaryotic cell contains a nucleus; more than one chromosome and is typically a multi-celled organism. Both plant and animal cells are eukaryotic cells.
Answer:
It has four main components: plasma, red blood cells, white blood cells, and platelets. Blood has many different functions, including: transporting oxygen and nutrients to the lungs and tissues. forming blood clots to prevent excess blood loss.
B. Bacteria take nitrogen from the air and convert it into a form usable by plants.
Explanation:
Nitrate is a different form of nitrogen that is naturally found in different types of soil, water, or even the air. Plants use this nitrate to develop and grow, and used as plant proteins. Bacteria can take ammonia and turn it into nitrites, which is not usable by plants, and turn it into nitrates, which is usable to plants and will help them grow, as I stated above.
Answer:
<u>core, radiative zone, convective zone, photosphere, chromosphere, and corona</u>
The cell membrane (also known as the plasma membrane or cytoplasmic membrane) is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells.