Answer:
A. the digestive, muscular, and respiratory
Explanation:
Muscle weakness affects the muscular system (muscles are in the muscular system) , stomach pain affects the digestive system (stomach is a part of the digestive system), and coughing affects the respiratory system (coughing hinders the ability to breathe properly).
66% of new HIV infections occur in sub-saharan Africa.
It will be Control. Part of the experiment used to show that the results of an experiment is really due to the conditions being tested.
Answer:
Haversian canals are bone structures that contain blood vessels that provide materials for the osteocytes
Explanation:
Through this Harvesian canals, blood vessels that contain the necessary nutrients for their growth and development are brought which keeps them alive
<span>22 pairs of autosomal chromosomes, 1 X chromosome, and 1 Y chromosome would
</span><span>be expected in a karyotype of a human male</span>
