Blood is considered to be a tissue and it is part of the circulatory system.
The human circulatory system functions to transport blood and oxygen from the lungs to the various tissues of the body. The heart pumps the blood throughout the body. The lymphatic system is an extension of the human circulatory system that includes cell-mediated and antibody-mediated immune systems.
Answer:
C
Explanation:
Because meiosis create four genetically different haploid cells (this cells are gametes/sex cells)
They may have different phenotypes because of differences in their environments, such as nutrition and healthcare.
Organism, population, community (first choice)
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