What is necessary for a convection cell to be set up in a fluid?

Which of the following statements about brain development and early childhood is true? the brain of a 5 year old is 60 percent the size of an adult brain the overall size of the brain does not increase dramatically from ages 3-15 by the time a child is 3 years of age, the brain is 25 percent of it's adult size the development that occurs inside the brain ends at the onset of adolescence

Skulls of homo sapiens were found during an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are ( 1 ) fossils. ( 1 ) a. mineralized b. mold c. original-tissue

How does blood cycle from the heart to the lungs, back to the heart and out to the body? use the terms heart, lungs, arteries, veins, capillaries, cells, oxygen, and carbon dioxide. (6 points! ) be clear and specific! i recommend starting at the heart with your description.