How does light reaction of photosynthesis affect earths supply of oxygen

Donde se encuentra el adn nuclear en un organismo eucariota?

Which kingdom includes some organisms that have no nucleus and can live in an environment with an extremely high salt content

Define the apical impulse and describe its normal location, size, and duration. which abnormal conditions may affect the location of the apical impulse? explain the mechanism producing normal first and second heart sounds. describe the effect of respiration on the heart sounds. describe the characteristics of the first heart sound and its intensity at the apex of the heart and at the base. describe the characteristics of the second heart sound and its intensity at the apex of the heart and at the base.