Answer:
Los cromosomas se forman cuando la cromatina se condensa durante la división celular, sólo en este proceso son visibles. Este proceso es muy importante, ya que esta condensación o sobre enrollamiento, hace que se economice espacio, si esto no sucediera, la cromatina excedería el espacio nuclear disponible.
Answer: base substitutions, deletions and insertions
From largest to smallest, the seven classification are: 1.Kingdom
2.Phylum
3.Class
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4.Order
5.Family
6.Genus
7.Species
So species is the smallest
Answer:
Anna has been dead for more than a few hours.
Explanation:
With the presence off eggs shows us that there was enough time for the flies to discover her and lay the eggs.
Answer: b. Nitrogen; Oxygen
Explanation:
The air is a mixture of gases in the following percentage;
Nitrogen; 78%
Oxygen : 21%
Carbon(IV)Oxide : 0.03%
Argon : 0.9%
Others ( minute traces of Neon, Helium, Methane e.t.c) : 0.17%