Answer: es decir un total de 78,
Explanation:
Los perros tienen 39 pares de cromosomas, es decir un total de 78, de estos 78 cromosomas 39 contienen la información genética de la madre y las otras 39 la información genética del padre. Desde la fertilización del óvulo, comienza el proceso de crecimiento, los núcleos de las células comienzan una multiplicación exacta, de esta forma crean nuevas células. El número de cromosomas en cada especie es constante, salvo que se padezca de algún síndrome el número siempre será el mismo.
Answer: <u>Nodes of Ranvier
</u>
Explanation: The nerve cells are also termed as neurons. Their structure is quite from other kinds of cells. These consist of long and slender region called as axon, with branches at one end, called as dendrites and a head region on the other end, called as cell body. The structure is shared below.
The axon region is covered with mylein sheath, throughout the region except few gaps, which act as the points from where action potential jumps and pass from one neuron to another.
Answer:
C. Natural selection is the process by which organisms with more beneficial traits are more likely to survive and reproduce.
Explanation:
Natural selection is an evolutional process by which species of living organisms with stronger or more beneficial traits have higher chances of survival and reproduction. In other words, it is the process by which organisms adapt and survive.
Organisms in a population are all different in their own ways. And those with characteristics or traits better suited for the environment are more likely to survive than those without. The selection prefers more beneficial traits and not wholly on the superiority of the organism. So, the survival and reproduction chance of an organism depends on the presence of traits beneficial to the environment, which is how nature selects. And in this process, those selected will dominate the population while those rejected will be reduced or even die.
Thus, the correct answer is option C.
Answer:
you could add an enzyme to speed up the reaction time and lower the amount of energy needed for the reaction
