Category: Biology

Justin Smith1/21/2018BIO182Tonya Baxley            With the ability to sequence genomes came new ways ofresearching evolution, we can now take ancient DNA, compare it with the DNA oforganisms alive today to show ancestry, and even where the two changed in thecode that makes up everything biological. Evolution comes out of necessity whereonly the ones who adapt survive, in the same sense evolution is faster underduress or rapid change as compared to a fairly stable and unchangingenvironment or life.            As seen in the article the human genome has had multipleinsertions and deletions over its course from neandertal to now, but themutations, adaptations, and […]

Gamma rays arepenetrating electromagnetic radiation, generated by radioactive decay ofunstable atomic nuclei. They are ionizing in nature and thus can affectbiological systems. Gamma radiation can interact with the living tissues andgenerate free radicals and/or ions within the irradiated tissues that candamage or modify the cellular components and affect their structure andfunction. There is a negative influence of gamma radiation on plant length andleaf growth; also decrease in photosynthetic pigment levels was observed 1, 2,3. Oxidative stress was induced upon exposure of gamma radiation, and in orderto counteract the stress, cells increases the expression of anti-oxidantenzymes (e.g. SOD, CAT) along with […]

The process ofclassical conditioning was the first of many phenomena introduced inbehaviourist psychology in order to try and explain the many different ways inwhich behaviour can be learned – whether in the lab or natural environment.Biological constraints of classical conditioning are all the different factorswhich affect how easily classical conditioning may occur, with some behavioursbeing more easily learnt and retained than others. This is known as biologicalpreparedness. It is the idea that as a result of our biology, certain behaviours– which can be deemed as more ‘useful’ – are more easily learnt than others. An examplebeing that fears of snakes […]

The idea of creating “image” relies upon the technique of evoking the senses in writing. Primarily, “image” is the use of concrete, significant, details. Details are concrete when they evoke the senses. In other words, they provide an image that one can taste, see, hear, smell, or even feel. However, when creating image and using details it often works to further the story or to provide some piece of information. The use of these details will provide some judgement of generalization to the reader of the piece. Thus, details should be significant. They should tell the reader something about the […]

Split Cherry Tree by Jesse Stuart is a story that takes place in a time when people thought more about farming and less about education. This story addresses conflicts concerning “rich vs. Poor” as well as “educated vs. uneducated”. Dave Sexton along with five of his classmates climbs a neighbor’s cherry tree to capture a lizard while on a field trip with his high school biology class. The cherry tree is broken and the owner wants the six boys to each pay a dollar for the cost of the tree. Dave does not have the dollar need, so Professor Hubert […]

Name: Lecturer: Course: Date: Respiration 1. Compare tubes 1 and 2. What effect does additional glucose have on the rate of CO2 production in yeast? Additional glucose will convert sugar molecules into CO2, alcohol and water. The CO2 expands producing gaseous bubbles, which will make the yeast to rise and the same time causing the temperatures to increase. Thus, additional glucose increases the rate of CO2 production. 2. Why do you think additional glucose had this effect? This is because in the absence of dissolved oxygen, yeast will continue to breathe through searching oxygen from sugar molecules. In the process, […]

INSTRUCTIONS NOT FOLLOWED: the experiment should be to identify which hand is a stronger muscle by providing different people on pressing or squeezing the ball for a specific period of time that should be identified and counting how many times can each hand press the ball not by recording the reactions of the people Name: Course: Tutor: Date: Lab Experiment on Muscles Aim The aim of this experiment is to examine the stronger hand muscles between the right and the left hands. Background Information The hands are used for numerous functions where their functions can be traced back into the […]

Lab Report Name: Institution: Lecturer: Course: Date: Lab Report Title: Clam Dissection Introduction The phylum Mollusca consist of various types of species including clams, octopus and squid. Similar to other marine Mollusks, the clams have a mantle that surrounds their soft body. They also have a muscular foot that is mainly used for burrowing into mud or sand. They are endowed with a visceral mass above the foot that contains the body organs (Postlethwait, et al., 2006). Purpose: To study the internal anatomy of a bivalve mollusk, Materials: dissecting pan, dissecting kit, screwdriver, rubber gloves, preserved clam, safety glasses and […]

 At an early age, I developed my interest in marinelife and decided to be a biology scholar. Over ten years, as a hobby, I havecultured cold-water species, and tropical water species. Through this, I wasable to maintain fish under adequate water condition and observed their behaviorunder different stress factors. Furthermore, I acquaint myself with theirbiology and this has enhanced my knowledge about aquatic life.  During outbreaks, I gained a stronginterest in diseases as I monitored behavioral interactions between fish andtheir pathogen agents. This offered me essential information about how shouldassess the clinical signs observed in an animal and diagnose the […]

James Watson was a scientist who discovered DNA with his colleague, Francis Crick.James Dewey Watson was born on April 6, 1928 in Chicago. Watson was the only son in hisfamily, and he was the son of a businessman and a stay-at-home mom. James D. Watson is thefather and his ancestors were from England, and his mother Jean Mitchell’s ancestors, were fromScotland. James Watson grew up in Chicago, and he spent eight years at Horace Mann GrammarSchool. After that, Watson got a scholarship to the University of Chicago and he did this all atthe age of 15. After that Watson went […]