The two ways that oceanographers can identify ocean currents are by mapping the path of debris from vessels and by studying the chemical and physical components of the ocean water.
The endosymbiotic theory states that eukaryotic cells might have evolved from prokaryotic cells through a close realtionship.
Answer:
Algae or other microorganisms
Explanation:
Because it effects offspring whilst body mutations are destroyed by the immune system
Answer:
D
Explanation:
The foremen ovale is a connection between the pulmonary trunk and the aorta in the fetus.
The foremen allows a bypass around the pulmonary circulation through an anatomical adaptation in the fetus which allows blood containing oxygen from the umbilical vein