The following statements describes examples of facilitated diffusion:
1. It requires concentration gradient.
2. It requires the assistance of protein carriers.
Facilitated diffusion refers to the movement of molecules into the cell with the help of carrier proteins. It is a passive form of movement.<span />
Answer:
D. a red allele present on at least one of two homologous chromosomes;
D. unplanned ecosystem interactions
Explanation:
A dominant allele or trait would always mask the expression of a recessive trait when both are present in a pair. The only way a recessive trait can express itself is when it is in a homozygous state. Since red color is dominant over white color in the beetle species, the genotype of any red color species would have a red alelle present on at least one of two homologous chromosomes. For example, if red allele is represented by R and white allele is r, the genotype of a red nettle species would be RR or Rr.
In the second question concerning the most reason for concern that some scientists recommends caution be taken regarding genetically modified plants is that in the process of introducing new genes into a population, unforseen and unplanned disruption of the ecosystem may occur as a result of interaction with the ecosystem that these process and it's product may present.
Answer:
La diferencia entre uno y otro producto radica básicamente en que el Base Coat Momponente es un producto de una mejor prestación respecto al Mono-Componente, dado que es un producto que ofrece mayor hidrorepelencia y a la vez es mucho más flexible, con lo cual es el producto ideal para aplicar sobre placas de EPS (alta densidad) o para el pegado de las mismas sobre el sopo
Explanation:
In the following image, all of the following can be determined, EXCEPT absolute age
.
So your answer is A.) absolute age
