Which best explains why siblings of the same parents can look completely different? The siblings received different genes from the parents.

The siblings have the same genotypes but different phenotypes.

The siblings received the same phenotypes but have different genotypes.

The siblings received the same chromosomes.

P. S NO LINKS

3points hurry! what is the relationship between biotechnology, sharkskin, and disease resistance? bioengineers have developed an artificial sharkskin that does not allow resistant bacteria to grow on it. disease-causing microbes have been genetically modified to keep them from infecting the skins of sharks. scientists have created a device that can be attached to the skins of sharks that dramatically increases their abilities to resist disease. sharkskin produces many chemicals that can be collected and used to create antibiotics.

Which mechanism of transport takes place when solute particles move from a region of high concentration to a region of low concentration? active diffusion isotonic osmosis

What are the student's observations and inferences before he starts his investigation?