The nucleus is the brain of the cell and is the main organelle. Inside the nucleus you will find the nucleolus, where ribosomes are produced or stored, and
which
forms chromosomes during cell division. DNA contains hereditary information, Human
cells have chromosomes,

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.

idk lol use google m8

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.

the sun creates it's own light, also gives light and life to bunch of stuff like plants,animals,humans etc.photosyntesis is the process of making food which needs sun,water,nutrients etc.