37. C
38. A
39. E
40. C.
41. D
Because there will be no bias if the reasearcher knows which drug is being given and the subject wont know what they are being given so both may assume that the subject is going to feel happier and expect to have an elevated mood and relieve feelings of depression. Hope this helps :)
<span>Phenotype depends on two alleles: one from mom and one from dad. If a puppy inherited the dominant trait of hair from one or both parents, it will have hair. If it inherited recessive traits from both parents, it will be hairless.</span>
Answer: Plankton
Explanation:
Plankto ( drufter or wanderer ) is carried by tides and currents
<u><em>Answer:</em></u>
<em>A cofactor is any non-protein substance required for a protein to be catalytically active. Some cofactors are inorganic, such as the metal atoms zinc, iron, and copper in various oxidation states. Others, such as most vitamins, are organic.</em>
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<u><em>Explanation:</em></u>
<em>*Hope this helped*</em>
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