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A killer hasinvaded the waters of California. In June 2004, biologist identified a Caulerpa toxifolia mutant algae as analien invader in the San Diego area. This alga normally grows in the warmwaters of Caribbean Sea but biologist are surprised to find out that it can nowsurvived the colder waters of the Pacific coast. Biologist wondered where and how didthis killer alga appeared. It was bred for home aquarium and then was probablydumped into the water system and then carried to the sea where it began to reproduceprolifically. The alga can overtake the normal flora of an area outstrippingand outcompeting all other living plants. Currently, more than 10 patches ofthe killer alga have been sighted off the California coast. 1. Does thismean that the population of these mutant killer algae evolving? E 2. Is this acase of natural selection? 3. Regarding the appearanceof this mutant algae, can this be attributed or due to environmental changes ordue to modification of the environment to suit the algae’s needs. Guys i need ur help..thankz so much..

Bistonbetularia is one species of engish moth found in Manchester,England. In this type of moth, there are 2 colors – light and dark(black). It was found out that prior to 1850, dark moths constituted less than2% of the population of all English moths. Later, the frequency of dark mothsincreased through the years. By 1900, 95% of the moths in Manchester and otherprime cities in England were of the dark type, whereas less dark moth type wasnoted in rural areas. The moth population changed from mostly light colored todark colored moths. The moth’s color was primarily determined by a single gene.When background information was investigated, it was found that in the late1800’s (1895-1899), England was in the age of industrial revolution. Soot fromfactories darkened the birch . In this type of moth, there are 2 colors – lightand dark (black). It was found out that prior to 1850, dark moths constituted lessthan 2% of the population of all English moths. Later, the frequency of darkmoths increased through the years. By 1900, 95% of the moths in Manchester andother prime cities in England were of the dark type, whereas less dark mothtype was noted in rural areas. The moth population changed from mostly lightcolored to dark colored moths. The moth’s color was primarily determined by asingle gene. When background information was investigated, it was found that inthe late 1800’s (1895-1899), England was in the age of industrial revolution.Soot from factories darkened the birch trees to which the moths landed and feedon. Against a sooty background, birds see the lighter moths better and ate moreof them. As a result, more dark moths survived until reproductive age and leftoffspring. The greater number of offspring left by dark moths is what causedincrease in frequency. 1. Does the changeof moth population from light colored to dark colored an evolution? Explain. 2. Does theincrease in relative abundance of the dark moth type due to natural selection?Explain. 3. Ifevolution took place in the moth population, what type of evolution is it?Microevolution or Macroevolution? Explain. Help me with this..Thankz a lot..