Explain why 2 brothers may look very different if they have the same parents. be sure to write in complete sentences and use the term "crossing over".

What is an endocrine function? (apex) a.esophageal glands release mucus into the esophagus b.salivary glands release saliva into mouth c.swear glands release sweat to the skin d.the pineal gland releases melatonin into the bloodstream

What molecules does hemoglobin decay into over time

Me the formula cacl2 represents the compound