Answer:
la investigación científica
Answer:
the main body system is circulatory system?
Genotype<span> is the pair of genes an organism has for a particular trait. </span>Phenotype<span> is the observable trait present in the organism.
It is always important you review the questions you have trouble with so you may understand them better. Hope i could help, have a goodnight.</span>
All vertebrates are, by nature, in two classes : the male class and the female class. Only some invertebrates like the earthworm, water snail etc are in single class with both male and female organs in the same body.
The first two is right the left to is left and yhe last two is split
