Where does sperm production occur within the testis?
A) myoid cells B) interstitial cells
C) seminiferous tubules D) rete testis
Answer: C
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The epidermis
a. has an outermost keratinized layer that is tough, airtight, and fairly waterproof. b. contains melanocytes, keratinocytes, Langerhans cells, Granstein cells, and transient T lymphocytes. c. has a richly vascularized inner layer. d. both (a) and (b) above. e. all of these answers.
Which statement best describes enzyme function?
What will be an ideal response?
Which muscle is a large, flat muscle that lays posterior to the trapezius group?
A) deltoid group B) levator scapulae ventralis C) latissimus dorsi D) supraspinatus
Answer the following statements true (T) or false (F)
1. The main structural unit of the cell membrane is the protein molecule. 2. Phospholipids and cholesterol are two lipid molecules found in the cell membrane. 3. Carbohydrate chains and protein molecules in the cell membrane are used as identification tags for the cell. 4. The nonliving material between the cell nucleus and cell membrane is called the cytoplasm. 5. The ribosomes are the “power plants” of the cells.