Why does meiosis produce cells with fewer chromosomes? a. it saves energy for the organism to produce fewer chromosomes. b. most of an organism's chromosomes are not useful to the organism. c. sexual reproduction joins two cells that each have half the total chromosome number. d. telophase destroys most of the chromosomes to save time?

           The correct option is c ( sexual reproduction joins two cells that each have half the total chromosome number).
Reason:
              Meiosis occurs only in reproductive cell in which the number of chromosome reduce to half. This phenomenon is very imoportant and essential for maintaining the number of chromosomes in species.

Plants get their energy from the sun using a process called photosynthesis. Photosynthesis the process by which green plants and  other organisms use the sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and makes oxygen as a byproduct. Within the food chain energy can be passed on and transferred from one organism to another organism. Plants harvest their energy from the sun during  the photosynthesis process. This energy can then be passed from one organism to another inside of the food chain. The organism that obtains energy from sunlight is called the producer of the food chain, like grass. Say a cow lives on a farm. It eats the producer, the grass and the energy from the grass goes to the cow when it eats it.