My Blog List

3.24.2011

Blog #8 (What I've Learned)

Blog 8 Your choice talk about something you learned or ask a question about something that is confusing you


In this semester I have learned about Natural Selection. Natural Selection is the process by which traits become more or less common in a population due to consistent effects upon the survival or reproduction of their bearers. It is a key mechanism of evolution


An example of Natural Selection are the Finches. The finches were birds that can have long or short beaks. The finches had to get thier food by poking thier beak through holes in trees and eating bugs inside beaks. The longer beaked finches were able to survive because they were able to get food through the holes, while the shorter beaks could not get food and were not able to reproduce.

3.17.2011

Blog #6 (Food Pyramid)

Blog #6 Which level of a food pyramid is the most important? Support your answer
I believe that that the most important level of the Food Pyramid is the Bread, Cereal, Rice, and Pasta group. I believe this because all of these foods give you carbohydrates and sugars that give you energy, through their breakdown in cellular respiration. These grains are essential for providing the majority of the food for Herbivores which we consume. 

Blog #7 (Biomes)

 Compare and contrast two biomes describe them in detail include pictures of plants and animals you are liklely to see.
Marine Layer
Marine regions cover about three-fourths of the Earth's surface and include oceans, coral reefs, and estuaries. Marine algae supply much of the world's oxygen supply and take in a huge amount of atmospheric carbon dioxide. The Marine Layer is host to animals such as fish, turtles, etc.


Desert Biome
Deserts cover about one fifth of the Earth's surface and occur where rainfall is less than 50 cm/year. Most deserts have a considerable amount of specialized vegetation, as well as specialized vertebrate and invertebrate animals. The desert is host to animals such as Lizards, Reptilles, Amphibians, Insects. 




One thing that the both have is that they both host animals that are adapted to extreme climates and conditions. They both have varied temperature variation. The Marine Layer holds alot more organisms and the Desert has alot more Carbon Dioxide.

3.03.2011

Blog #5 (Extinction?)

Blog #5 There have been 5 major extinction events throughout history, are humans impacting the 6th? Why or why not?
Yes I believe that humans are impacting the 6th major possible extinction. Humans are producing Green House gases have lead to global warming that will impact the 6th extinction. If the Polar Ice Caps begin melt this will have a dramatic event of the conveyor belt flow of warm water and cold water which cycles through the ocean. This disruption will eventually lead to a Ice Age, which will dramatically impact the plant life, and by consequence animal and human life.