Given the following list of organic molecules, which includes hormones? 1) nucleic acid derivatives 2) polypeptides 3) steroids 4) proteins
A. 1, 3, 4
B. 1, 2, 3
C. 2, 3, 4
D. 1, 2, 3, 4
E. 1, 2, 4
C
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The plantaris muscle tendon inserts alongside the lateral aspect of the Achilles tendon.
Answer the following statement true (T) or false (F)
Explain why a pseudostratified epithelium is not truly stratified
A) All the cells do not contain a nucleus. B) All the cells are not columnar. C) All the cells form a single layer and contact the basement membrane. D) All the cells' nuclei are round instead of elongated. E) All the cells are not linked by tight junctions.
How are the processes of reabsorption and secretion related?
A. Materials move in opposite directions: reabsorption moves materials into the blood, whereas secretion removes them from the blood. B. They both involve movement of material from the blood into the tubular fluid. C. Materials move in opposite directions: secretion moves materials into the blood, whereas reabsorption removes them from the blood. D. They both involve movement of material from the tubular fluid into the blood.
Which of the following organs has both endocrine and exocrine functions?
A) The thymus B) The pineal gland C) The salivary glands D) The adrenal gland E) The ovary