Blog #8 Choice

I've learned many things about evolution. It is defined as a trait over time in one or more inherited traits found in a population of organisms. Either genetic drift or natural selection will cause this. Generally only the fittest organisms will survive and persist for thousands, maybe millions of years. All of the living organisms today had all evolved from an ancestor. Some may even have a common ancestor.

Blog #7 Compare and Contrast Biomes

The most distinctly different biomes are the terrestrial and the aquatic biomes.  Both of these biomes contain plants and animals, but the clear difference is that one is on land, and another is in water. In the terrestrial biome, there are reptiles, insects, mammals, and birds and there are also desserts, forests, and grasslands.  On the other hand, the aquatic biome have various kinds of fish and reeds.  In addition, there are still some mammals in the ocean such as bottle nose dolphins, blue whales, or manatees.  Any large body of water such as oceans, lakes, rivers, or seas are all considered aquatic biomes.

Blog #6 Food Pyramid

I believe that the producers are the most important part of the food pyramid. Unlike the rest of the groups, the producers do not need to eat others to survive, they just create food on their own. Each step higher in the pyramid depends on the one lower so, primary consumers would starve if there were no producers and the rest of the food chain will follow.

Blog #5 Extinctions

I believe that the 6th major extinction is caused by humans. We are the ones who are causing the following: pollution, transformation of the landscape, overexploition of species, and the introduction of alien species. This extinction would be the first biotic extinction in history, the rest were due to a physical cause. Humans are causing mass physical changes to the world which leads to another extinction.