Marine Biology News

Last semester I needed to find and arctiale that related to my placement for career intern. Since I was working with the aqaurium keeper at the zoo every week, I researched articles about marine biology. This site, www.sciencedaily.com, has a bunch of really good articles that have stuff do with every branch of science. Most of the stuff I look at though is realted to zoology and marine biology.

I just found this article about how there may have been more species of seacows than previous thought. I am really interested in fish and mammals that live in the ocean so this article was really cool to me. The thing I like about this article (and a lot of the other articles), is that it shows how research can show us new details about animals or completely contradict what was previously thought. These articles do a great job at explaining the new discoveries of science to me. Here is the link to the article I found about seacows:

http://www.sciencedaily.com/releases/2012/03/120308143241.htm

Here is also a picture of a sea cow:

Just kidding, this is a real sea cow:

Gather around kids, it's time to learn!

Here are some helpful hints to remember diffusion and active transport.

Simple Diffusion is basically the movement across a membrane. It moves from a higher concentration to a lower concentration. Its kind of like how farts move across the air. So, you dont initally have smell a fart but in a few seconds man is it pungent.

Facilitated Diffusion is the movement across the membrance will a little help. It still moves from a higher concentration to a lower concentration.

Osmosis is basically just the diffusion of water. 

Active Transport is jjust like diffusion only opposite. It moves from a low concentration to a high concentration. Its diffusion that needs some energy to complete the process. Energy is required to move the substance against the concentration. Its diffusion with the help of energy.

Hope this helps. The best way I understand it is through a picture like this: