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biology Essay Topics & Paper Examples

Why I Study Biology

Biology is fascinating in itself. It teaches us all the ways of life not just from a mankind perspective but through all living things, whether, human species, plants etc. I personally study biology because I want to discover the creation and functions of all living things in the world. Being a Psychology major means studying the mind and in order to better understand the human mind, you have to know the basics in the ways of life and how to incorporate the science of human nature into why people react to life differently, culture, religion, politics, etc. All of these factors are taken into consideration into Biology. This semester was extremely challenging for me, and there were a lot of…

Soil Transmitted Helminths

I. ROUNDWORMS (ASCARIS LUMBRICOIDES) A.Morphology 1. Eggs The fertilized eggs are broadly oval, measuring 45 to 75 µm long by 35 to 50 µm wide. The outer covering is an albuminoid coat, usually stained a golden brown by bile as seen in the fresh stool. The outer coat is coarsely mammillated and lies directly on top of a thick smooth shell, which is usually not easily distinguished. Some eggs will be seen to have lost the outer albuminoid coat and in these, the thick yellowish inner shell is obvious. It is thicker than the shell of hookworm egg, which these decorticated Ascaris eggs otherwise resemble. The infertile eggs are longer and narrower than the fertile ones. They may measure about…

How Organism Evolved Physiologically

Organisms adapt to their environment but what happens when an organism’s surroundings and environment change? Physiological ecology is the study and understanding of that mechanism of living organisms and how living things work. Physiological ecology arises with an understanding of the influence of temperatures. Temperature, along with others, is one of the most important factors of Physiological ecology. “Water that is available is another major focus all the organisms that contain water in environments and disburse energy.” (“Adaptation”, 2013). Many ecologists studying the importance of water in biological systems focus their research on desert species. When it comes down to most organisms locating energy and nutrients they need in order to grow and successfully reproduce is the most important and…

Body Mass of Earthworms

Earthworms play an important role in the turnover of organic matter in soil and maintaining a good soil structure (Lavelle, 1988). Physical properties in soils improved by earthworms include improved aggregation, stability, and porosity. The soil biological and chemical properties of soils that may be modified include nutrient cycling (mainly nitrogen and phosphorus), organic matter decomposition rates, and chemical forms of nutrients in soil and their availability to plants. They also change the soil pH, organic matter dynamics in terms of quality and quantity, microbial and invertebrate activity, and diversity of the microflora and fauna (Lavelle et al., 1998). Therefore, they are essential for plant growth especially in an extensive agricultural system, such as organic farming, which is based on…

About the Bottlenose Dolphin

Do YOU need information about Bottlenose Dolphins? Well, if you do, you can find it all here in this article. It is an article specifically about the Bottlenose Dolphin. Appearance! (What they look like) Bottlenose Dolphins are a very beautiful dolphin and according to the underwater animal kingdom scientists, one of the most beautiful in the sea. It is still beautiful even though it does not have many features. It can only vary its colors from a light and fluffy whitish color to a dark rock grey color. The Bottlenose Dolphin has a very soft back with a soft stomach. This makes it slimy underwater. If you tried to touch a Bottlenose Dolphin’s back or stomach, you would say “eww,”…

Diffusion and Osmosis Through Dialysis tubing

We did this experiment to test the diffusion of different substances through dialysis tubing. We used what we knew about diffusion to make predictions on what we thought the mass of the dialysis tubing to be after submerging them for 30 mins and we knew that diffuse occurs from highest concentration to lowest concentration. Since the dialysis tubings are filled with different substances than what they are being put into then they should all gain or lose mass. If the dialysis tubing is submerged in different substance than what is in the tubing then some of the dialysis tubings will lose mass and some will gain mass. To begin this experiment we filled 5 dialysis tubings with one of the…

The Five Domains of Life: Biology

What are the major characteristics of each of the three domains of life? Why do some researchers believe that the Kingdom Protista should be split into more than one kingdom? In the early days of biology, all organisms were classified as either plants or animals. Single-celled eukaryotic organisms such as algae and Paramecium were assigned to one of the kingdoms according to whether they are photosynthetic or not. Fungi and prokaryotes were grouped with plants, because fungi are sedentary and prokaryotes have cell walls. A five-kingdom scheme was devised because some organisms don’t fit well into a two-kingdom system of classification. The simple cells of prokaryotes set them apart in their own kingdom, Monera. Organisms in the other four kingdoms…

Nature of Communities

At the beginning of the 20th century there was much debate about the nature of communities. The driving question was whether the community was a self-organized system of co-occurring species or simply a haphazard collection of populations with minimal functional integration (Verhoef, 2010). Krebs (1972) described a community as an assemblage of populations of living organisms in a prescribed area or habitat. However, according to Wright (1984), the working definitions of community can be divided into two basic categories: organismic or individualistic. The organismic approach contends that communities have discrete boundaries and that the sum of the species in an area behaves as organism with both structure and function. In contrast, the individualistic concept regards communities as collections of species…

Genetic Inheritance

To what extent does genetic inheritance influence behaviour? Use relevant research studies in your response. There is and has been for a long time now a controversy within the psychology science. This controversy states that until today psychologists can’t assure weather humans’ behaviour is inherited, or that it comes from the environment in which we were formed. Over the years several psychologists have had this doubt and wanted to answer it, so they have done a number of studies, which principally focuses the human behaviour in intelligence and personality. In these studies the psychologists have evaluated and analyzed carefully the results in order to finally conclude and support either one of these side. There was a relevant research study that…

Diffusion Across Biological Membranes

From the cell simulation modal made, it has explained about the aspects of diffusion and indicator solution (chemical testing) to test for particular substances. From the observation made, iodine and glucose have greater concentration due to small molecular size and also they are monomers. It means their molecules are smaller. Thus, it diffused out to create a state of equilibrium. On the other hand, starch molecules did not move by diffusion across a membrane into or out of the cell due to the large molecular side. This is because many repeated glucose subunits are found in starch structure. Starch is a polymer. This is the reason why the water in the beaker or 1 inch dialysis tube did not turn…

Joyas Voladoras

Throughout his work, Joyas Voladoras, Brian Doyle describes the life and the heart of different mammals, focusing on the hummingbird and the blue whale. By contrasting these two, Doyle introduces an interesting idea of life, not only between hummingbirds and whales, but with all living things. “Every creature on earth has approximately two billion heart beats to spend in a lifetime” (274). Hummingbirds live a fast paced life. “Each one visits a thousand flowers a day” Doyle writes, “they can drive at sixty miles an hour…. They can fly more than five hundred miles without pausing to rest” (273). Each of these ideas displaying how busy the birds is all hours of the day. But behind every trip to a…

Why Violent Video Games Hould Be Banned?

Marine biology is a diverse science concerned with all aspects of plant and animal life in the sea. Marine biologists study the distribution, abundance and life histories of animals and plants in the sea and the way in which these are governed by environmental factors. The eventual aim of marine biology is to understand marine life and to ensure the production of food from the sea at a sustained level. The field of marine biology can be divided into research and technical work: Researchers study the marine system as a whole or focuses on a particular marine species Technical marine biologists are more involved in collecting samples, building and testing equipment and analyzing data Marine biologists are concerned with the…

Humans and Animals Difference

More than 100 million animals every year suffer and die in cruel chemical, drug, food and cosmetic tests, biology lessons, medical training exercises, and curiosity-driven medical experiments Define and explain animal testing. Is there a need for medical research to be carried out using animal experimentation or are there alternatives to using animals in medical research? What is Animal Testing? Animal testing can also known as animal experimentation or it is also known animal research. Animal research is a fundamental part of scientist and medical process. Animal research has had a vital role in many scientific and medical advance. It is also continue to aid our understanding of various diseases. Animal research is where animals are being used in research…

The Life Cycle of a Frog

Diagram of the Frog Life Cycle| Mom and Dad Frog Decide to Have Baby FrogsThe life cycle of a frog starts when mom and dad frog fall in love and decide to have baby frogs. Okay, nobody really knows if frogs fall in love, but it’s okay to think that they do. Mom and dad frog will mate, either in the water or in a tree, depending on what kind of frogs they are. You know this is happening when you see dad frog hugging mom frog from behind her. The dad frog will lay on top of mom frog and wrap his front legs around her body and he will hug her for several days. This hug is called…

Difference between Anatomy and Physiology

Anatomy and Physiology are probably 2 of many different sciences necessary for the best understanding of the human body and how it functions. So I believe that in order to compare two things, you need to explain what each are first. ANATOMY is the study of the human body. It can also be defined as being the study of how various parts of the body interact and work together. PHYSIOLOGY is the study of how living organisms function. That includes nutrition, movement, and reproduction. So you are pretty much studying how living things, including humans, do what they do. It often involves how systems of the body interact such as the muscular system interacting with the skeletal system to (for…

What is a Membrane

1. What is a membrane? Membrane is any delicate sheet that separates one region from another blocking or permitting (selectively or completely) the passage of substances. The skin, for example, can be considered a membrane that separates the exterior from the interior of the body; cellophane, used in chemical laboratories to separate solutions, acts as a membrane too. 2. Concerning their permeability how are membranes classified? Membranes can be classified as impermeable, permeable, semipermeable or selectively permeable. An impermeable membrane is that through which no substance can pass. Semipermeable membranes are those that let only solvents, like water, to pass through it. Permeable membranes are those that let solvent and solutes, like ions and molecules, to pass across it. There…

Life Cycle of Tulips

The life cycle of tulips start when the bulbs are planted from mid-September to mid-November and ends when the leaves fade and eventually wither away. The cup-shaped flowers are beautiful to look at and have an ability to make a glum person cheerful. This article gives an insight into the life cycle of tulips. Tulips were considered to be the flowers of God due to their beauty and perfection, by the Turks. Many of us believe tulips are native of Holland. Contrary to the belief, there is not a single species of tulip native to Holland. Tulips belong to Central and Western Asia and it were the nomadic tribes who brought the tulips to Turkey. Turkey was called the Ottoman…

Fundamentals of Biology

You are beginning a journey in the world of biology. Completing this worksheet will prepare you with the background knowledge necessary for understanding this world! What Are the Major Theories of Biology? The major theories of biology have been tested over years and provide information helping you to understand the science of biology. For each theory, list the name of the person or persons known for scientifically testing each theory, the approximate date they experimented with the theory, and a sentence or two to describe the theory. Bioenergetics: Antoine-Laurent Lavoisier, late 18th century… helped to place the chemistry of life into the context of a larger understanding of chemistry and energetics. Biological classification: Carolus Linneaus, late 18th century… This evolutionary…

Definitions of biological science

1) Cite 3 definitions of biological science. Why is it significant to include it in your curriculum? a) Science of life b) Transcends such as sciences as chemistry, physics, mathematics and geology c) Study of living things * We can have information’s about the workings of living systems, turning the discoveries into medical treatments, methods of growing food and innovative products. We can learn organic structure, properties and chemical mechanism as we apply biological systems. It will empower us to understand and even predict about living things and other related to science. 2) Analyze the timeline of biology presented and discussed previously. What do you think are the 5 major inventions or discoveries of all time? Prove your point. a)…

Nurture and nature affect the human growth and development

The dictionary defines growth and development as the process by which human increase in size and mature in form and function. It can be influenced by nurture- the act of nurturing and the physical world or nature itself. Nurture affects growth when it comes to biological aspects- heredity for instance. If the parents are both tall, the possibility that the offspring be tall is high. Hence, it really affects growth. But, what about the development? For sure, heredity is again involved. However, nurture affects human growth especially development. It is a huge factor in both two. It affects growth in the sense that the nutrients needed by a child is dependent in nurturing ways of his family most especially the…

Abiotic and Biotic Components

Abiotic component abiotic components (also known as abiotic factors) are non-living chemical and physical factors in the environment, which affect ecosystems. Each abiotic component influences the number and variety of plants that grow in an ecosystem, which in turn has an influence on the variety of animals that live there. The four major abiotic components are: climate, parent material and soil, topography, and natural disturbances. From the viewpoint of biology, abiotic factors can be classified as light or more generally radiation, temperature, water, the chemical surrounding composed of the terrestrial atmospheric gases, as well as soil and more. The macroscopic climate often influences each of the above. Not to mention pressure and even sound waves if working within marine- or…

Life Cycle of Sperm and Egg

When asked how did I get pregnant? It seems like a rhetorical question. Of course many would say well you had sex Watson. That is a no brainer, but in all actuality that is not the extent of the answer. How do we become pregnant? What happens in order for that miracle we call life to be created? The egg develops during the first phase of the Menstrual Cycle. This first phase is called the Proliferative Phase. This phase begins at the end of your menstruation and last about 9 to 10 days during the average 28-day cycle. The ovaries then prepare for the ovulation within a phase called the preovulatory phase or the follicular phase. At this time there…

The Conflict between Psychology and Biology

This paper debates on the conflicts that arise between biology and psychology during pursuance of a career in psychology. Among many students who take psychology as a major, they surprisingly find out that they are obliged to study a great deal of biology in their first year in college. This paper then explores the importance of biology in psychology, and whether teaching biology in psychology makes the subject lose its meaning. Key words: psychology, biology PSYCHOLOGY AND BIOLOGY The Conflict between Psychology and Biology Psychology is the scientific study of humans or animal mental functions and behaviors (Malton, 2002). It studies topics such as perceptions, cognitions, attention, emotion, emotion, motivation, brain functioning, behavior and interpersonal relationship (Leahey, 1987). In its…

Wildlife Biologist

* Who is a Wildlife Biologist? Description of the type of work done, Description, Advantages/disadvantages, working conditions. * Education and Employment Education and training, Job outlook, Education and training required Potential places of employment, Advancement opportunities. * How much does a Wildlife biologist make? Salary range, Salary/wages * A day as a Wildlife Biologist Typical work day—types of tasks the career involves, working conditions * Why I chose Wildlife Biology. An explanation of why you chose this career, related occupations. * How to become a Wildlife Biologist. An explanation of what you can do now to work toward this career, a list of 10 questions you would ask if you had an opportunity to interview someone in this career *…

Fossil Evidence

1. A. Fossil evidence has been used to support evolution. Paleontologists have dug up old bones and other things that were preserved in sedimentary rock. All of these things that were found show evidence that there was life long ago, however that’s not the only thing these fossils show. Fossils also show that there have been changes in the organisms that have inhabited this earth. The reason it supports that is once we compare the fossils to another organism, by using many different techniques, we can then see how the fossil from back then has adapted and evolved into this new organism. However it is still the same organism just modified to the environment it lives in during that time…

Animal Cells: Structures and Organelles

The following are examples of structures and organelles that can be found in typical animal cells: * Centrioles – organize the assembly of microtubules during cell division. * Cytoplasm – gel-like substance within the cell. * Endoplasmic Reticulum – extensive network of membranes composed of both regions with ribosomes (rough ER) and regions without ribosomes (smooth ER). * Golgi Complex – responsible for manufacturing, storing and shipping certain cellular products. * Lysosomes – sacs of enzymes that digest cellular macromolecules such as nucleic acids. * Microtubules – hollow rods that function primarily to help support and shape the cell. * Mitochondria – power producers and the sites of cellular respiration. * Nucleus – membrane bound structure that contains the cell’s…

Phylum Porifera

Which phyla lack organs? What type of symmetry do they have? Phylum Porifera which lacks any symmetry (asymmetry) and phylum Cnidaria which has radial symmetry. List all of the phyla that show cephalization. Phylum Annelida, Phylum Mollusca, Phylum Arthropoda, Phylum Platyhelminthes, Phylum Nematoda, and Phylum Chordata. Do all organisms on the table have 3 germ layers (endoderm, ectoderm, and mesoderm)? If not, which Phyla have fewer than three germ layers? Not all the organisms have three germ layers. The organisms with less than three germ layers belong to Phylum Porifera which has no true germ layers and phylum Cnidaria which has two germ layers (diploblastic). One phylum has more species than all the others. State the name of this phylum…

Paper Notes on Genetic Code

Understanding the process of human development begins at conception, and will continue to change and develop with the person thought his or her life. Humans grow and develop through different stages, and in these stages a conscious, psychological, or biological development will happen that will define each person. To understand the process, this paper will discuss the life span perspective of development and talk about the situations and cultures that affect the human perspective. The paper will cover two theories of life span development, and discuss how heredity and the environment affect the individual differences in development. Explain the life span perspective of development. (page 10) The life span perspective of development is a life long journey. This begins at…

The Feeding Behavior of the Protist known as Tetrahymena vorax

The purpose of this experiment was to study the rate of phagocytosis of the specific protist known as Tetrahymena vorax. This certain kind of protist feeds at a normal rate when conditions are normal. We began the experiment of understanding how Tetrahymena feeds at normal temperatures. Doing so, we allowed the Tetrahymena to feed at specific time limits and then killed the protist with gluderaldheyde to detect how much the protist gained. We then counted how many food vacuoles were filled with India ink that was included in the environment of the Tetrahymena while the time was ticking. We then constructed a similar experiment with different conditions to compare if the rate of phagocytosis was affected by the change in…

Skeletal system

1. The general trend for bone density as a person ages is a steady decline as years pass. This study shows that every decade, males and females bone density slowly decreases. 2. Between the ages of 20-50 females lose about 11% of their bone density and males lose about 13% of their bone density. Males do in fact lose more density then females but they lose it at a more stable and steady rate. Females lose less density at more unstable rate going from about 6% (40-50) to about 9% (60-70). Males lose about 13-15% bone density between the ages of 50-80. 3. The female sex, show a greater change in bone density as age increases. The greatest decrease occurs…