Sarah, a citizen of the united states, has emigrated to australia. she has been advised by her skin doctor to take every precaution to protect her skin at all times. what could be the reason behind this concern? a. no reason. her skin doctor is being overly cautious. b. being new to the country, it is safer for sarah to take precautions until she gets acclimated. c. australia faces a threat of overexposure to uv radiation. d. australia's hot weather could cause sarah’s skin to burn. e. the doctor may be cautious because sarah may be genetically predisposed to skin afflictions.

Anne, an intern in a microbiology lab, was observing the characteristics of various specimens of protists. match each specimen to the category of protist to which it belongs.

Hormones are chemical molecules produced by endocrine glands. one such endocrine gland is the thyroid gland, which synthesizes the thyroid hormone, which in turn affects the heart muscles. which two statements describe the probable reason for the function of the hormone? the cells in the heart have specific receptors that allow for the intake of hormones. the heart and the endocrine glands have the exact same types of cells. all cells make the same types of hormones. thyroid hormones show their effect on the heart by means of specialized cells. thyroid cells and cardiac cells have different dna.

What is the purpose of transcription? a. to copy the nucleotide in dna b. to form rna molecules from dna c. to produce a nucleic acid sequence from an amino acid sequence d. to link amino acids together to form stands of protein