A biology blog for students
Over the past couple of weeks, I have been writing about classification of living organisms, starting from domains to kingdoms. Today I will write about a more specific division: phyla. There are nine phyla, and it is important to remember their characteristics and examples of animals in the phyla. Nine Phyla (Omond) Porifera: Sponges No... Continue Reading →
Last week, we went over the three domains and four kingdoms that are used as a way to classify living organisms. I ended the article by saying that there is so much more to the fourth kingdom, kingdom Animalia. So today I want to discuss more about this specific kingdom, especially about evolutionary trends. Evolutionary... Continue Reading →
If you were to name an animal, a common response would be a lion, tiger, horse, monkeys, etc. Although these words are commonly used in our daily lives, they are not the formal names of organisms. The system by which we name and classify all organisms is called taxonomy. It is based on a system... Continue Reading →
Last week, we discussed evolution and the processes of natural selection. Today I would like to continue the discussion on evolution and write about how life first began on Earth. This topic is interesting in that the theory of evolution states that all living organisms come from a common ancestor. A lot of debate that... Continue Reading →
The theory of evolution is a scientific fact that is very well-known by people all around the world. Many people know that Charles Darwin first introduced natural selection and hence, evolution, but not many know the additional theories that are essential to understanding the diversity and whole process of natural selection. In today's post, I... Continue Reading →
The greenhouse effect is currently one of the most popular debate topics among not only environmentalists, but also the general public. It is also mainly discussed in several school curriculums such as biology, ESS, and geography. They are produced mainly by three producers: the United States, China, and the European nations. These gases are carried... Continue Reading →
Photosynthesis is one of the most heavily discussed topics in biology courses. Probably a reason why they are regarded as such an important topic is because they have impacted Earth's atmosphere in the course of centuries if not thousands of years. Today we will take a look at how photosynthesis altered Earth's atmosphere for millions... Continue Reading →
Meselson and Stahl, although their names may not be heard so often, played a huge role in figuring out the replication of DNA in bacteria. Through their meticulously-designed experiments, they discovered that DNA replicates in a semi-conservative way. Diagram of Meselson and Stahl's Experiment (Khan Academy) There were three possible ways DNA replication could happen:... Continue Reading →
Previously on one of our posts, we have learned how proteins can be denatured or activated. Enzymes have similar functions, since they all enzymes are proteins. When temperature, pH, substrate concentration, and enzyme concentration are not within optimal limits, amino acids break and cause changes to the active site of an enzyme. Temperature When temperature... Continue Reading →
It has been previously discussed that genes control the sequence of amino acids in a polypeptide. However we have not learned about the details. Today we will find more about how genes code for the sequence of amino acids linked by peptide bonds (formed through a condensation reaction) to form a polypeptide. There is a... Continue Reading →
The Science Herald 