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.
Viruses use energy from their hosts to reproduce. viruses do not have most of the parts needed to be considered living, but it does reproduce and evolve.
Answer:
Scientific knowledgedevelops through making observations about the natural world. Anobservation may generate a scientificquestion, which may lead to a hypothesis. The hypothesis can be tested through experimentation. The results of experimentation lead to changes in scientific knowledge.
Answer:
cells have different shapes because they do different things
Explanation:
each cell type has has its own role to play in helping our bodies
to work properly
Through dna helicase. This enzyme undwinds DNA making it accessible for replication.
