True
Explanation:
Inspiration is the process of inhaling air from the nose that reaches the lungs through respiratory tract. Expiration is the release of air from the lungs to the outside environment through the nose.
During inspiration, the ribs move up and out, diaphragm moves up or inferiorly, the external intercoastals contract and the thoracic cavity increases in volume for the air to come in. During expiration, the opposite of inspiration occurs. Both inspiration and expiration are related.
Answer:
The correct answer is B)10%. See the explanation below, please.
Explanation:
We use the following equivalence, remembering that Adenina pairs with Timina and Guanina with Cytosine:
A=T ; C=G A+G=T+C
If A= 40% ----> T=40%
A+G=T+C
40%+G= 40% +C ----> 40+10=50
G=C=10%
Explanation:
Xenopus laevis is allotetraploid: it has 2 sets of homologous chromosomes originally from one species and 2 sets of homologous chromosomes originally from another species, making a total of 4 sets of chromosomes. During meiosis, every chromosome has another homologous one with which it can pair, producing viable gametes that have the complete genetic information of the species.
Mules, however, are allodiploid: they have one set of chromosomes from a donkey and another set from a horse, making a total of 2 sets of chromosmes. But those two sets are not homologous, so during meiosis the chromosomes can't pair and the gametes will have errors that make them inviable, making mules sterile
It is 4 because you need to add the 0's
