D. Plants have adapted to deal with the sun in many different ways, and this is one. The stomata are regulated by guard cells, which are activated by different things depending on the species of plant, and guard cells are supposed to keep the stomata from staying open all the time and losing too much water to evaporation. So, the solution is to have the stomata on the bottom of the leaf to prevent direct sunlight contact (and therefore more evaporation), and guard cells to protect the stomata.
The function of the nucleus is to protect the cell’s DNA and control cellular activities. Two of the structures that the nucleus depends on are ribosomes and the nuclear membrane. The ribosomes assist with protein synthesis. Rough ER contains ribosomes on its surface and transports proteins throughout the cell. Smooth ER makes lipids and distributes them within the cell.
The answer is false. Spontaneous generation is a hypothetical process in where the living organisms would also develop from nonliving matter thus Redi and Pasteur believe that spontaneous generation of living thing is wrong since living things should come from living things only.
Mass and distance affect the gravitational force.