Homologous structures

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1, which of the following are NOt  homologous structures?

a, ovaries ; testes

b,labia majora; scrotum

c, clitoris; spongy urethra

d, paraurethral glands; bulbourethral glands.

e, greater vestibular glands; bulbourethral glands

 

2, the oogonium and the spermatogonium

a, develops directly from cells that develop in the gonads

b, are derived from the mesoderm

c, are derived from the ectoderm

d, are derived from the placenta

e, are derived from the yolk sack

 

3, how does the reproductive system affect the skeletal system

a, androgens inhibit the growth and maintenance of bones

b,androgens promote osteopenia

c, androgens promote osteoporosis

d, estrogen causes epiphyseal plates of both to close, ending growth in height

e, estrogen causes osteoporosis

4,the american cancer society  recommends that a woman should have a baseline mammogram taken, to serve as a comparison, between the ages of 

a,20 and 24

b, 25 and 29

c, 30 and 34

d, 35 and 39

 

 

Reference no: EM13799740

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