A. Order, Arrangement, world and Universe
synthesis phase of interphase
Answer:
One biotic factor includes soil, air(oxygen and carbon dioxide), water.
One biotic factor includes animals and plants.
Both factors are different in each ecosystem. This is because, for example, the soil in desert ecosystem can differ from the polar ecosystem. Animals in polar ecosystems include polar bears, wolves, etc. while desert ecosystems have animals like deer, artic fox, etc.
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Answer:
The option that is not part of the chromosomes is D. Many strands of RNA
Explanation:
Chromosomes can be described as structures made up of DNA that is coiled around proteins called histones. The genes are made up of NA and are present on the chromosomes. Each chromosome carries alleles of different genes. Hence, all other options A)A strand of DNA. B) A gene C) Many proteins are all part of a chromosome except for the option D)Many strands of RNA.
RNA is not a part of the chromosomes. The DNA is transcribed into RNA though.
Explanation:
The answer is B.
That's : Red blood cells are flat and indented so they can carry the greatest possible amount of oxygen.
The answer you chose is incorrect, because it is the white blood cells which destroys infection.