Biology Essays

In this activity you will take a tour of the human brain and explore the major brain regions to discover the functions of each region or area. Functional Specialization • In terms of brain function, what is functional specialization? Each independent part of the brain is responcible for a certain …

A.Leprosy, caused by the bacterium Mycobacterium leprae is a leading cause of peripheral neuropathy worldwide; although it is treatable, the damage caused by the disease is irreversible. In Sannu’s case, why is there both sensory loss and muscle weakness? Answer: because Sannu’s is also malnutrition and he has not received …

Nearly all animal cells have a nucleus, with the only exception being the red blood cell. The nucleus has two major functions, which are housing the DNA and controlling the cell’s activities. In the centre of the nucleus is the nucleolus. This doesn’t have a membrane, but holds itself together. …

Ultraviolet (UV) radiation and its detrimental effects on plant life have been widely researched. This research studies the effects of UV radiation on sex-determination in Ceratopteris richardii. Sex determination in Ceratopteris richardii is determined by antheridiogen, a pheromone that promotes maleness. In this experiment, UV radiation was used on the …

A young hiker has been on a long walk. He is now sitting in front of a small campfire, drinking a hot cup of soup. It is dark and a frost is beginning to form on his tent. Explain the hiker’s heat gains and losses, and what mechanisms would come …

Reproduction is “the act or process of reproducing; specifically: the process by which plants and animals give rise to offspring and which fundamentally consists of the segregation of a portion of the parental body by a sexual or asexual process and its subsequent growth and differentiation into a new individual”, …

For this experiment we will be testing four different bacteria with four different tests, using glucose, lactose, and sucrose. Hopefully we will use the information from those test to be able to identify the organisms in each of the samples from the case studies. We will use the results from …

In my view, another cause of drain brain is that working and studying environment in home country is limited. We haven’t created the best conditions to develop skills of people yet. As we know, in developed countries around the world, science and technology develop fast. So people living in poor …

1. An organism that is true breeding for a trait is said to be (a) homozygous (b) heterozygous (c) a monohybrid (d) a dihybrid 2. At the end of meiosis, how many haploid cells have been formed from the original cell? (a) one (b) two (c) three (d) four 3. …

“Evolution is the most profound and powerful idea to have been conceived in the last two centuries” (Mayr E 2002) The concept of evolution has been debated throughout time. “Evolution is change in the properties of populations of organisms over time”. Based on evidence available the theories of evolution have …