Evolution in action


Have  you  ever come across the term  a an antibiotic resistant bacteria . A person took the treatment but didn’t get better?Let us figure this situation out.Variations exist among organisms of the same population.A few of this bacteria have a gene that make them survive when a patient  take this particular antibiotic.As the rest of…Read more »

Darwin’s Theory Of Natural Selection.


Topic Darwin’s Theory of natural selection There are a few theories that attempt to explain or show how organisms change  (evolve)  over time  .ee 1.The Branching Theory. 2.The Theory Of Spontaneous Generation.  3.  Use And Disuse. 4.The Theory Of Natural Selection. Darwin’s theory of natural selection proposed that nature(the environment) is a major contributing factor of…Read more »

Evollution


Evolution is the change in species over time,also known as biological or organic evolution. 1.What do scientist learn from the study of organic evolution? 1.The study of evolution helps to , 1. Explain the differences in structure, function, and behavior among living things. 2.Explain the changes in characteristics in populations throughout time. 1.List the evidence that support…Read more »

Inheritance of genetic traits


HSOffspring inherit their genetic traits that make them look like their parents, through  genes contained in the chromosomes during the process of reproduction.All body cells of an organism have identical genetic information,yet are different in structure and function.  The explanation for this variation in cellular structure,  is that  different  parts of the genetic  instructions are…Read more »

Types of fertilization


Fertilization is an essential process in sexual reproduction. It fuses the gametes thus restoring  the chromosomes number specific for the species.there are two types of fertilization,external and internal. A quick warm up 1- Define fertilization. The fusion or the union of sperm nucleus and an egg nucleus. 2- What is the importance of fertilization in…Read more »