In gametogenesis , germinal cells multiply by mitosis and mature garnetes are formed by meiosis.
From the deepest to most superficial: pia mater, arahnoid, dura mater
<em>crossing-over affect evolution...
<u>reason:
</u>during crossing-over chromosomes exchange their genetic information...
because of this variations occur in new generation,, in new generation some characters are from maternal chromosomes and some are from paternal chromosomes... </em>
Answer:
las enzimas son proteínas y aceleran reacciones químicas.