<span><span>The blood cells containing hemoglobin, that transports oxygen (O2) to the body tissues of vertebrates, are called red blood cells.</span> Red blood cells (RBCs), are also referred to as red cells, red blood corpuscles, haematids, erythroid cells or erythrocytes<span>, (from Greek erythros for "red" and kytos for "hollow vessel"..RBCs take up oxygen in the lungs and release it into tissues while squeezing through the body's capillaries.</span></span>
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Answer:
Producers are the foundation of a food chain.
Explanation:
They provide energy for all of the consumers in an ecosystem.
The answer is C. (The second B).
Because, Bacteria are key to recombinant DNA technology because of one simple fact. The reproduce rapidly.
It is also known as 'The Great Bear'
