answer: The raw materials of photosynthesis, water and carbon dioxide, enter the cells of the leaf, and the products of photosynthesis, sugar and oxygen, leave the leaf.
Explanation:
hope this help
Answer:
the enzymes have been denatured
Well oxygen has 6 electrons in its outer shell and mg has 2. Oxygen need two to complete it's outer shell and mg needs to lose 2 to gain a complete out we shell.
Answer: Option D
During isovolumetric contraction blood is flowing from the ventricles into the aorta and pulmonary arteries.
Explanation:
Isovolumetric contraction is an occurrence that happen in the systole where the ventricle contracts with no change in volume. Isovolumetric contraction causes the left ventricles pressure to rise above the atrial pressure which shut the mital valve and cause the first heart sound. When the pressure rises in the left ventricle, it contracts and pump blood to the aorta and pulmonary arteries. The ventricles continue to contract and blood continue to flow to the aorta and pulmonary arteries in the systole.
