Answer: Always and always
Explanation:
Within any large animal population there is always a variety of traits seen in the population. When there is a large number of individuals in a population then there are chances that there a genetic diversity.
Sexual reproduction in the organism can lead to the genetic variation in the organism. There are chances to have more variation in the population having more organism.
Two different organism are genetically different and there are variety of traits seen in the two animals that belongs to different species.
A eukaryotic cell that is involved in synthesizing large amounts of protein might be expected to have a lot of ribosomes. Ribosomes are dot like structure that are located around the rough endoplasmic reticulum. They are where proteins are made. There are also a few that are located in the cytoplasm. These ribosomes are the ones that give the endoplasmic reticulum a rough edge.
The second law of thermodynamics is a statement of the law of conservation of energy say that heat cannot be completely converted into mechanical energy