2. Los tejidos que se desarrollan a partir de un cigoto son el resultado directo de:
a. Meiosis y fertilizacion
b. Fertilizacion y diferenciacion
C. Reproduccion asexual y meiosis
d. Diferenciacion, despues,

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.

i believe your answer would be c.. : )

yes, because even though a theory has a  lot of evidence to support it, it is not always true

the sun creates it's own light, also gives light and life to bunch of stuff like plants,animals,humans etc.photosyntesis is the process of making food which needs sun,water,nutrients etc.