Sonya has a chronic illness,
and to treat the condition, she takes an antibiotic every day. Despite her
illness, Sonya’s diet is nutritionally adequate, and she exercises regularly. Based
on this information, Sonya may need to <span>take a
dietary supplement that contains vitamin K.</span>
Answer:
Primary active transport directly uses a source of chemical energy (e.g., ATP) to move molecules across a membrane against their gradient.
Explanation:
because at is formed,the lighter part floats on the surface and the really heavy part (like iron and nickel in the core)sank to the middle
