Match the following terms and definitions 1.
gene
a thread-like molecule in the
nucleus composed of DNA
2. allele
a portion of DNA which codes a
specific heredity trait
3. trait
a genetic characteristic of the
individual
4. chromosome
alternate forms for a specific gene

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.

Which of the following describes the difference in stimuli required to detect a difference between the stimuli? a. just noticeableb. signal detectionc. subliminald. top down

What is the membrane that sheath of schwann cell containing cytoplasm and nucleus that encloses myelin