Answer:
Photosynthetic organisms provide food for humans as well as glucose and oxygen. All the food we eat either directly (if we eat a plant) or indirectly (if we eat an animal that eats plants or other animals) can be traced to photosynthesis. Actually, almost all organisms obtain their energy from photosynthetic organisms.
B
Natural explanation helps to explain why some life forms survive and some do not, and this links to the theory of evolution because the traits favored in natural selection become more dominant until the organism's entire population has evolved to incorporate that change.
Answer:
Protein
Explanation:
It has nitrogen, hydrogen, oxygen, carbon, and sometimes small amount of sulfur
Answer:
b. a fluid-mosaic of phospholipids and proteins
Explanation:
According to the currently accepted structure, the cell membrane is made up of two layers of amphipathic phospholipids in which proteins are embedded or present. The hydrophobic tails of phospholipids make the core of the membrane. These tails are not covalently attached to each other and are free to move laterally. Likewise, the protein molecules float in the fluid bilayer. This mosaic pattern is not static since the positions of the proteins in the bilayer are constantly changing. The fluid mosaic model to explain the structure of the cell membrane was given by S.J. Singer and Garth L. Nicolson in 1972.
