1) Considere os seguintes processos I. Uma planária fragmenta-se em três pedaços, originando três novas planárias.
II. Uma população de microcrustáceos é formada somente por fêmeas que põem ovos dos quais se desenvolvem novas fêmeas.
III. Um rato macho acasala-se com uma fêmea, produzindo seis filhotes.
Pode-se afirmar, com certeza, que a variabilidade genética é uma das características dos descendentes resultantes somente de *
10 pontos
a)I.
b)II.
c)III.
d)Ie II.
e)I e III.

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring

Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?

African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.