Es una característica sexual primaria. a. Aparición de vello púbico.
b. Presencia de pene o vagina.
c. Crecimiento de los senos.
d. Secreción de hormonas.

1. the is the thinnest part of the earth. 2. the is the thickest part of the earth. 3. what metals are mentioned in the text?

Which best describes the digestive system of arthropods? a incomplete, two openings b complete, one opening c two-way, one opening d one-way, two openings

Will mark branliest. the theory of plate tectonics was developed with the contribution of scientists from many different disciplines. which of the following is a contribution from geophysicists?