Blog #6 Semester 2

Blog #6 Which level of a food pyramid is the most important? Support your answer

For the food pyramid of the organisms, I think the producer is the most important level out of all the organisms.  The producer can produce their own food from sunlight.  Therefore they can grow and reproduce by themselves.  Other than that, many insects and animals feed on plants to survive.  Without the producers, all these animals and insects will die and extinct.  And as this extinction moves on, all organisms will be extinct because of the lack of food sources.  Therefore, the producer is the most important part of the food pyramid.

Blog #5 Semester 2

Blog #5 There have been 5 major extinction events throughout history, are humans impacting the 6th? Why or why not?

I think humans are impacting the 6th extinction.  Human's advance technology is casing a lot of pollution and is invading the natural environment of the species.  As trees gets cut down and pollution spreads around the world, a lot of species will be extinct.  Globe  warming and pollution will eventually led to the 6th major extinction in Earth.

BLog #4 Semester 2

Blog # 4 Describe the three types of selection: directional, stabilizing and disruptive and give an example of each in your own words.

 Directional selection is a type of natural selection where certain gene is used and more favored. It becomes apparent in each generation and removes mutation from a population.

Stabilizing selection is a type of natural selection where the genetic differences reduced through generations due to a trait that has been more favorable than the reduced genes.

Disruptive selection is the a type of natural selection in which there are two favorite genes and one of them is more favored than the other, resulting into two distinct groups with two distinct features yet from the same ancestry.