The leaf because it is the major structure of photosynthesis in a plant.
Explanation:

Answer:
1. decomposing through the action of bacteria
2.Rhizobium
3. Evaporation
4. precipitation
5. condensation
6. gosh plant
Answer:
e should be the answer and if not, I would consider A. they both seem right
"Sex Cells" or "haploids" are needed in order to add variation in DNA. If there was no "haploids" (which are just cells with 23 Chromosomes), then the female would not need the male for reproduction, basically meaning birth of an identical twin to the mother. The two haploids, the female's ova (Egg) and male's sperm meet, creating a zygote, or a fertilized egg.
This makes sure there is "immediate variation", and it isn't just ten generations of the same "Bob"!
C. In radiometric dating, scientists place samples of a fossil in certain liquids until the samples dissolve. The rate at which they dissolve indicates the age of the fossil.