What is an allele? a dna sequence different versions of a gene a hairstyle a physical trait?

Which type of bond forms between water moleculesstrong bondhydrogen bondcovalent bondpolar bond

Glucose is a form of sugar found in the blood cells use glucose as a source of energy, but too much or too little can cause serious health issues so, the body uses the hormone insulin to regulate glucose n the blood insulin maintain glucose levels in the blood if blood glucose lovels got very high, what would you expect to see happen to insulin levels?

Ais a group of individuals of the same that exist together in the same place at the same time