¿Qué característica debe tener una mutación genética para que promueva el proceso evolutivo de una especie? a) Debe estar presente en las células somáticas, sin modificar la capacidad adaptativa de los individuos que la poseen. b) Debe estar presente en las células somáticas, sin importar si entrega una ventaja o desventaja adaptativa a los individuos que la poseen. c)Debe estar presente en las células germinales, sin importar si entrega una ventaja a los individuos que la poseen. d) Debe estar presente en las células germinales y otorgar una ventaja adaptativa los individuos que la poseen. e) Debe ser adquirida a lo largo de la vida.

the element that provides strength to the exoskeletons of clams and oysters is phosphorus.

this is so because calcium carbonate is the main component in the shells. calcium carbonate is strengthened by phosphorus.

explanation:

answer: decrease

a limiting factor is the one which decrease the abundance, distribution and causes extinction of the population of species in a ecosystem. here, predators including hawks, owls and snakes are the limiting factor for the population of mexican free tailed bat.   although bats are nocturnal animals as they forge for food at night these predators also may remain active during night which can decrease the population of the mexican free-tailed bats. also, these bats eat only one type of insects that are moths. the food can also be a limiting factor as all 400 members are dependent upon same type of food needs that are moths. the decrease in the moth population can cause decrease in population size of the mexican free-tailed bats.

therefore, the scenarios will most likely to decrease the population size of the mexican free-tailed bats.  

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?