Answer: The sunlight hits the upper surface of the leaf, and sunlight is crucial to the photosynthesis process. The leaves trap the energy and use it to create glucose.
B. Selective breeding. Humans have been choosing certain dog breeds to make other breeds. The Labrador retriever is an example of humans creating different breeds for certain tasks
Eukaryotic chromosomes contain both DNA and protein tightly packed together to form Chromatin.
