Red blood cells have no mitochondria and generate energy anaerobic. So, the answer would be B. You can easily eliminate A. and C. because they mention that blood cells have a mitochondria, but they don’t.
Emperor penguins need lungs to breathe. In penguin lungs, air never stops. ... Once the air goes farther into the trachea it splits into two different directions into both lungs. To get the oxygen into the blood cells, it must come "within small distance of the penguin blood cells".
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The answer is
<span>B.They help produce plasma cells.
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Answer:
1. hydrogen; 2
2. it means two strands of DNA twisted around each other like a winding staircase
Answer:
bacteria, fungi, protozoa, worms, viruses, and even infectious proteins called prions.
Explanation:
