Answer:
the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Explanation:
Answer:
Its molecules are farther apart in the solid state than in the liquid state.
Explanation:
Unlike most other liquids that reduce in volume with decrease in temperatures, when water goes below 4 degrees centigrade, the volume begins to increase. This is due to the way the water molecules arrange themselves in ice. Water molecules are polar and align themselves with regards to their dipoles. The partially positive hydrogen ends tend to place themselves some distance between two partially negative oxygen ends of the adjacent molecules. This pushes the molecules farther apart in crystalline (solid) form than in liquid form.
Answer:
One
Explanation:
In a controlled experiment only one variable is changed at a time, while the others are kept the same/controlled so changes can be observed and a causation can be determined.
Choice C is correct.
WHY: In meiosis, sex cells (eggs or sperm) are produced. This means that they must have <u>half </u>the number of chromosomes in each, and they must be each <u>UNIQUE</u>.
Thus, the other options (A,B,D) cannot be correct because the product of meiosis cannot be the exact copy of the parent cells, and so cannot have the same number of chromosomes either.
