Answer:
Variation allows some individuals within a population to adapt to the changing environment. Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation.
Explanation:
Hope this helps
Answer:
d asteriod
big bang theory was formed by two massive asteriod
Answer:
Zebra mussels are spread from one body of water to another by natural flow, carried on the feathers or feet of birds, or by humans in bait buckets or on boats.
Such plants are called vascular plants.
Can certain diseases be hereditary?
Are genetic disorders passed though DNA?
Can we predict certain diseases based on certain chromosomes?