Stem cells in the testes are the
A) spermatogonia.
B) spermatozoa.
C) spermatids.
D) primary spermatocytes.
E) haploids.
A) spermatogonia.
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Which of the following correctly lists the order of structures through which urine flows
after its formation in the nephron? A) calyx, renal pelvis, ureter, urinary bladder, urethra B) renal pelvis, calyx, urinary bladder, ureter, urethra C) calyx, renal pelvis, urethra, ureter, urinary bladder D) renal pelvis, calyx, ureter, urinary bladder, urethra
True or False? Scientists believe that any significant change in the composition of the microbiome of the human integumentary system may increase a person's susceptibility to autoimmune diseases.
Answer the following statement true (T) or false (F)
Substances that dissolve in water are called
A. hydrochromic. B. hydrophobic. C. hydrophoric. D. hydrophilic.
Match the characteristic with the correct division of the nervous system.Receptor molecules may be muscarinic or adrenergic
A. Somatic motor nervous system B. Autonomic nervous system C. Both somatic and autonomic nervous systems D. Neither somatic nor autonomic nervous system