Saturday, September 3, 2011

My Mascot

Meet Squawk my mascot :D

Cohesion

In this picture you can see that while it began to rain, the rain began to join together forming droplets on the windshield. This is because of the process of cohesion.

Cohesion, like adhesion is a form of attraction between one or more objects or surfaces, but cohesion relies on two similar or identical objects in order for them to stick together. A common form of cohesion that we see almost every day is the forming of water droplets whether it be from morning dew, in the shower, or a rainy day. These water droplets are formed through the process of cohesion as tiny water molecules begin to attract and clump together forming these larger molecules of water.

Sources:
Mrs. Beethe's notes.

Adhesion

Tape is a common form of an adhesive that we often use around the house so I decided it would make a good example for adhesion.

Adhesion is a form of attraction that allows dissimilar particles and even some surfaces to cling together through a form of direct contact. Adhesion is very different from cohesion because the forces in adhesion require dissimilar particles in order for the molecules to stick together, while in cohesion both of the particles must be similar or identical in order for them to cling together. Adhesion is where the term of using "adhesives" comes from as they allow things like tape to stick to a wooden object applying the reference to different surfaces clinging to eachother.

Sources:
Mrs. Beethe's notes.

Evaporative Cooling

Over the cup of boiling water you can see steam rising up, this steam helps in the process of evaportive cooling as it releases heat in the form of that steam to cool the water faster.

Evaporative cooling is the process that helps remove heat from certain objects in a form of releasing heat energy. As objects release steam or other hot vapors they release many of their heat atoms from the object itself slowly causing it to lose energy allowing it to grow colder over time as more energy is released. This form of cooling takes place in both liquid and solid objects such as foods or beverages.

Sources:
Mrs. Beethe's notes.

Friday, September 2, 2011

Carnivore

This big fella is a fish found at the local aquarium and he is a carnivore because his diet is only based off of other meaty fish.

Unlike herbivores, carnivores are very different forms of creatures that live off of a very meaty diet. Carnivores such as sharks and lions are known for their sharp teeth that they often use to rip apart the flesh of their prey. Carnivores live off of the nutrients they gain by eating herbivores or sometimes even smaller forms of carnivores and omnivores. By doing so, the nutrients that the other animal once held in its own body is absorbed into the body of the carnivore predator allowing it survive by commonly eating other animals.

Sources:
Mrs. Beethe's notes.

Herbivores

Animals can be classified into three different types of dietary groups and those three are herbivores, carnivores and omnivores. Herbivores are consumers of producers and autotrophs as they eat mainly plants or fungi organisms. Herbivores are given their title because they stick to eating leafy greens and other plants, they do not however eat any forms of meat. Often herbivores tend to stay away from those that are meat eaters because they are creatures that hold nutrients that those meat eaters would consume in order to gain. A strange adaptation that these herbivores often have is that their teeth are more dull rather than sharp unlike carnivores because they do not use their teeth to sink into flesh of other animals. A few examples of herbivores would be koalas, llamas, cows and squirells.

Sources:
Mrs. Beethe's notes.

Epistasis

My dumb little dog oreo is an example of the outcome of epistasis. His mother was a pure black toy poodle and his father was all white, his brother ended up being black like his mother but he ended up being a mix of both the black and white genes.
Epistasis is when there is an interaction going on between two or more genes to control a phenotypes behavior. The number of genes interacting with eachoter during epistasis can be found using the Mendelian Genetics chart to find their genetic ratio. Epistasis can affect color, shape, texture and a few other features of different organisms depending on what the genes differ with when being interacted with one another. An example of epistasis that was actually observed by Gregor Mendel himself was the pea pod genetic changes where he saw changes in varying pea pod plants that had grown into different shapes, sizes and colors.

Sources:
McClean, Phillip. Gene Interactions. ndsu.edu. Retrieved September 2, 2011, from http://www.ndsu.edu/pubweb/~mcclean/plsc431/mendel/mendel6.htm

Thursday, September 1, 2011

Thermoregulation

I took this picture because my dog usually find ways to keep his body temperature maintained such as if it's too hot in the house he'll pant and release heat and like with the air conditioner he just enjoys the cool with his fur so he manages his body temperature using thermoregulation.

Thermoregulation is the consistency of a body temperature in an organism even under different types of external temperature conditions. Thermoregulation is a key factor in different species as it keeps that species at its highest performing level by maintaining its preferred body body temperature increasing its senses, mobility and production rate. Things that could affect this thermoregulation could be humidity, temperature incline or decline, vapor pressure and air velocity as forms of conditions that could affect the temperature of the skin. Some species learn to adapt to their surrounding external environment to achieve a proper thermoregulation while other animals may sometimes require a new environment to perform efficiently.

Sources:
Thermoregulation. harvard.edu. Retrieved September 1, 2011, from http://www.deas.harvard.edu/courses/es96/spring1997/web_page/health/thermreg.htm

Epithelial Tissue

The skin on my arm and hand are both considered epithelial tissue as they are located on the outter external part of my body.

The structure of epithelial tissue is formed by these epithelial cells being packed very tightly together so that there is very little intercellular space and only a small amount of intercellular substance. It covers the whole surface exterior of the body and some of the interior as well and when found on the interior it is known as endothelium. It is specially formed to create one or more layers that can cover about all of the body's internal and external body surface. This tissue is supported by basement membrane, an important structure which links it to other surfaces and provides structure. There are many categories that epithilial tissue can be broken into but the two main categories would be simple epithelium which is only one cell thick. Then there is stratified epithelium which is two or more layers thick forming a firm visible structure such as our skin. Epithelial tissue is very important as it provides a variety of different functions to our bodies such as protection, sensation, diffusion and a few other functions.

Sources:
Epithelial Tissue. uwc.ac.za. Retrieved September 1, 2011, from http://www.bcb.uwc.ac.za/sci_ed/grade10/mammal/epithelial.htm

Invertabrates

Jellyfish are common forms of invertabrates and can move freely, their tentacles are an adaptation that they use to protect themselves.

An invrtabrate is considered a species that is a multi-cellular and eukaryotic animal. A mass majority of animals, about 97% that make up all known animal species are invertabrates. Invertabrates are said to have a common eukaryotic form of ancestor and this can be recognized with similarities to past fossils found through invertabrate palaeontology. Forms of invertabrates are sponges, jellyfish and other fish along with many, many other species. A common importance for these invertabrates is that because they have no spinal chord they often protect themselves by having a form of shell or hard exoskeleton but that isn't always the case. In the childrens cartoon "Spongebob Squarepants" it displays the nautical adventures of a common seasponge and often they display how Spongebob doesn't have a vertabrate giving him body capabilities that most creatures such as humans do not possess like bending or stretching in weird ways.

Sources:
Mrs. Beethe's notes.

Fungi

Locally grown or found in the forests, mushrooms are a form of fungi that can be either enjoyable or deadly depending on what form of mushrooms they are.

Fungi is one of the most amazing and versatile specimen in our environment today in both ecological and benefitial ways. Fungi fall under the category of being decomposers as they break down dead organic material and supply nutrients back into their ecosystems. In fact if it weren't for this process that fungi create, there would most likely be a few plants gone as they rely on these nutrients for efficient growth and stability. Not only do fungi provide common nutrients for the environment, but they also help provide food for animals and humans to eat such as mushrooms, truffles and through fermenting yeast, even beer. Along with food benefits, fungi also provides medical benefits such as antibiotics like penicilan. Although fungi has many great gifts to offer, fungi isn't always the greatest thing because it can also cause some diseases that are not always easilly curable such as athletes foot and ringworms. Fungi will continue to bring great things to our environment and lifestyles but must be kept under control so that they do not pose a harmful factor.

Sources:
Mrs. Beethe's notes.

Bacteria

Yogurt such as these containers of Yoplait are forms of good bacteria that we can actually consume, not all bacteria is like that found in yogurt.

Bacteria are microscopic organisms. Their single cells do not contain any membrane surrounded organelles such as mitochondria and also lack a membrane-enclosed nucleus. Bacteria can be classified into a number of different categories depending on the features that this bacteria contains. Bacteria is considered prokaryotic because it has no membrane bound nucleus. The form of reproduction found in bacteria would often be asexual reproduction where the bacteria can simply form new bacteria through its own structure.

Sources:
Mrs. Beethe's notes.

Wednesday, August 31, 2011

Kingdoms

These are the five different kingdoms and a picture for each classification. I couldn't find a way of showing the kingdoms myself so I used an image from online.
All living organisms can be brought into one or more of five categories, those five categories being the Monera, Protista, Fungi, Plantae and Animalia kingdoms. Those kingdoms can be broken down even further into subdivided divisions for plants, or phyla for animals. The monera kingdom is made up of prokaryotic cells such as eubacteria or cyanobacteria. The other four kingdoms are eukaryotic leaving the monera kingdom as the only prokaryotic kingdom. The protista kingdom is made up of mainly unicellular protozoans along with microscopic and macroscopic algae. The fungi kingdom consists of mainly haploid and dikaryotic cells, they are multicellular and often heterotrophic. The plantae kingdom is mainly made up of species with haplo-diploid life cycles, are often autotrophic and contain their embryo within the female sex organ of the parent plant.

Sources:
The Five Kingdoms of Life. palomar.edu. Retrieved August 31, 2011, from http://waynesword.palomar.edu/trfeb98.htm

Tuesday, August 30, 2011

Population

The goldfish in our fishtank are considered their own little population as they are from the same species and interact and develop in their own little environment.
A population can be classified as a group of the same type of species that live in the same geographical area. This area is usually the location that mainly inter-breeding occurs within the population. An example of a population would be a lake that holds a group of koi fish that inter-breed with eachother and reproduce to expand their population in the lake.

Sources:
Mrs. Beethe's notes.

Friday, August 26, 2011

Homologous Structures

My cat Mya is an animal that has parts that would be considered homologous structures, one being her arms as they share common characteristics to that of humans and other creatures.

Homologous structures are body parts from different species that more or less share the same purpose, but this isn't always the case. These are considered homologous structures because the species most likely shared a common ancestor, but now they hold different characteristics. An example of some homologous structures would be the similar bone structure and allignment that humans and animals such as birds and cats have in common.

Sources:
Homologous Structures. gsw.edu. Retrieved August 26, 2011, from http://itc.gsw.edu/faculty/bcarter/histgeol/paleo2/homol1.htm

Vestigial Organs

My ugly little toe is considered a vestigial organ because it's not a necassary organ needed for me to continue on living my life.

Vestigial organs, also known as rudimentary organs are structures that seem to have served a purpose in the past, but now when closely looked at seem to serve little to no purpose. Another factor for these structures being considered rudimentary is that they have lost their past abilities to function properly. Some structures that are considered to be vestigial organs would be your wisdom teeth, tonsils and even the nipples on a man.

Sources:
A. Covey, Jon. Vestigial Organs. creationinthecrossfire.com. Retrieved August 26, 2011, from http://www.creationinthecrossfire.com/Articles/VestigialOrgans.html

Photosynthesis

These are some plants (fake as you can see), I took a picture of them because plants are among the different organisms that can perform the process of photosynthesis.
Photosynthesis is basically the conversion of sunlight into natural sugars that can later be used in cellular respiration to form ATP, or energy. This process can take place in plants, some forms of bacteria and even some protistans. The process of photosynthesis is often associated with the green pigment called chlorophyll and it releases the oxygen that we humans need to survive.

Sources:
Photosynthesis. maricopa.edu. Retrieved August 26, 2011, from http://www.emc.maricopa.edu/faculty/farabee/biobk/biobookps.html

Thursday, August 25, 2011

Heterotroph

Heterotrophs are the opposite of autotrophs, rather than producing their own energy from inorganic sources they instead consume other organisms to obtain the energy from those consumed organisms. Heterotrophs are the dominant organisms of the food chain as they consume autotrophs for their stored energy. Examples of heterotrophs would be animals like birds, felines or even humans as we too eat autotrophs (fruits and vegetables) in order to receive nutrients to maintain a balanced diet.

Sources:
Mrs. Beethe's notes.

Autotroph

This picture displays some plants (also fake), I took another picture of a plant because plants are a form of autotroph as they create their own nutrients through their bodies.
An autotroph would be considered a form of organism that has the ability to take in inorganic energy such as the energy provided from either photosynthesis or chemosynthesis and applying it to form nutrients for itself. Autotrophs can be classified on the food chain as producers and they are similar to the use of solar panels. With solar panels, the panes usually absorb the light they receive and form an energy source for whatever they are linked to. Autotrophs are extremely similar because they also capture solar energy and can apply it to themselves.

Sources:
Autotroph. biology-online.org. Retrieved August 25, 2011, from http://www.biology-online.org/dictionary/Autotroph

Wednesday, August 24, 2011

Cellular Respiration

Cellular Respiration is a process that is needed to revert stored energy into adenosine triphosphate which is also known as ATP. This process can occur in both eukaryotic and prokaryotic cells and revolves in three cycles which are glycolysis, the citric acid cycle and electron transport. After cellular respiration has occured in a cell, if the cell was eukaryotic it would have a maximum ATP yield of 36. Prokaryotic cells however would end up with a maximum ATP yield of 38 and this is because eukaryotic cells lose two ATP molecules when passing through the mitochondrial membrane after the process of glycolysis.

Sources:
Bailey, Regina. Cellular Respiration. about.com. Retrieved August 24, 2011, from http://biology.about.com/od/cellularprocesses/a/cellrespiration.htm

Osmosis

Although it's hard to see, those are little pieces of sea salt that I had piled in a plate filled with water and osmosis occured in the plate as the water was absorbed from one side of the plate to the portion with the salt found in it.

A form of Passive Transport, osmosis is the process of diffusion of water across a selectively permeable membrane in which the water follows the direction of a higher concentration of solute.

Sources:
Diffusion and Osmosis. biologycorner.com. Retrieved August 24, 2011, from http://www.biologycorner.com/bio1/diffusion.html

Enzymes

In this picture you can see the fire from the burner, this fire acts as an enzyme to the water in the pan helping to speed up the process of boiling the water itself.
Made up of amino acids, these catalysts are essential for creating cells and speeding up chemical reactions. Enzymes are made up of many linked amino acids that work together to speed up the functions in a cell making it possible for that cell to regulate its' tasks in a unique and specific fashion. Different cells require different numbers of enzymes, but in order for that cell to continue to function there must be some form of enzyme activity allowing these cells to perform their functions.

Sources:
Brain, Marshall. How Cells Work. howstuffworks.com. Retrieved August 24, 2011, from http://science.howstuffworks.com/environmental/life/cellular-microscopic/cell2.htm

Base

Soaps such as this AJAX dish soap and other types of detergants are considered forms of bases.
A base is a compound that contains hydroxide ions when it is dissolved in water. Bases are also measured on the pH scale and are referred to as alkalis, these bases give solutions with hydrogen ion activity that is lower than the activity in pure water. Basic substances lie on the pH scale ranging from any substance with a pH level higher than 7.0 up to a pH level of 14, 14 being the strongest form of a basic substance. A weak base would be considered baking soda or common sea water. A stronger basic substance would be Ammonia or Lye.

Sources: 
Ophardt, E. Charles. Acids and Bases. elmhurst.edu. Retrieved August 24, 2011, from http://www.elmhurst.edu/~chm/vchembook/184ph.html

Acid

These lemons are a form of acid because they hold a high acidity content level.
An acid would be considered any compound that contains either hydrogen ions or hydronium ions when it is dissolved in water. Acids can be measured using the pH scale to determine how concentrated or diluted the acid is. A strong acid with the pH level of 1 or 0 would be a substance such as battery acid. A weaker acidity such as a level 6 acid on the pH scale would be found in normal range precipitation. The range of acidity levels on the pH scale are measured from 0 to 6, 0 being the strongest level of acidity.

Sources:
Ophardt, E. Charles. Acids and Bases. elmhurst.edu. Retrieved August 24, 2011, from http://www.elmhurst.edu/~chm/vchembook/184ph.html