Daily Archives: August 23, 2012

K-strategist (human picture won’t upload)

K-strategist

K-strategist is something that categorizes a group.  K-strategist have a growth pattern of a long juvenile pattern with a population that grows exponentially and stabilizes when it reaches the max value.  The population size is smaller but stable. The reproductive strategy is mate choice and pair bonding. All of these things vary much from the R-strategist, which are the opposite of this. An example of K-strategist are humans and elephants and example of R-strategist is mosquitos and mice.  K-strategist have the characteristics of being very dependent on the parents for a large period of times, such as humans. They can be seen as the exact opposite of R-strategist. 

Leave a comment

Filed under Uncategorized

Redox Reaction (iron rust picture will not upload)

Redox reactions is a chemical change that occurs when something has their oxidation state changed. The most common type of  Redox reactions is that of iron or a metal rusting, such as the one in the picture. Oxidation is described as the loss of electrons while reduction is described as the gain of electrons. A combustion such as a burning of a camp fire is also considered to be a redox reaction. 

Leave a comment

Filed under Uncategorized

Parasitism (Mulch picture will not upload)

Parasitism

Parasitism is described by a relationship that only one organism benefits from a relationship at the expense of the other organism. An example of this would be a leech, which is known as the most common parasite. A leech will suck the blood of an organism to only benefit itself and will cause no benefit to the organism.  A tick is another example of a parasitic organism that will do a similar process as the leech. Parasites are usually smaller than their victims because they go undetected and can take from their host as much as possible. Parasites also exist as plants and insects (mosquitos). 

Leave a comment

Filed under Uncategorized

Meristem (Plant picture will not upload)

Meristem

The Meristem is a portion or a zone of the plant that has cells that are embryonic that allow the plant to continue growing. A normal plant can not divide and multiply wherever it wants. There is a specific zone and area in which the plant can grow and do the cell repairs needed. The Meristem apical is a tip of this zone and it is also the zone in which the highest concentration of embryonic cells lie. This portion is what causes there to be a constant tip that grows in an up right position. There is five different zone of the plantthat have different levels of maturity in the cells. Each embryonic cell grows and responds at the rate the plant needs.

Leave a comment

Filed under Uncategorized

Ethylene (plant picture will not upload)

Ethylene can be described as a natural organic compound. It has a complex chain of hydrogen’s and carbons. The organic compound is used a lot in many industrial products. The most notable of these products is that it is an ingredient that is used to cause plants the quickly ripen their fruit. The organic compound is used a lot in the agriculture field to increase the yield of these plants every year. It is estimated 109 million pounds of this organic compound is used every year.

Leave a comment

Filed under Uncategorized

Eubacteria (bacteria picture will not upload)

This term can be summed up by the term “true bacteria”.  The term used to be called domain but has been simplified. They are part of one of three types of cells that make up our world. They are known to be found one almost every surface of the entire world. Even in extreme situations such as artic tundra’s, desert floors, and even our house hold floors. They are some of the oldest cells on the planet and it is believed that they gave way to some of the more common bacteria known today. 

Leave a comment

Filed under Uncategorized

Gibberellins (Plant picture will not upload)

Gibberellins        

Gibberellins are a hormone that is found inside of all plants that has an important job that deals with the plants growth. Gibberellins is present in the plant seed from germination, which it aids the plant sprout, all the way to elongation of the plant stem. The hormone was discovered by a Japanese scientist before World War II. It is known that Gibberellins is made out of plant acids and is present in even higher amounts when exposed to excess sunlight.

Leave a comment

Filed under Uncategorized

Taxis (spider web Picture will not upload)

Taxis

A taxis is a term used to describe when an organism response to an outer stimulus that is affecting them. In other words when something causes an organism to have a reaction. For example if a fly gets caught in a spider web the vibrations of the fly’s movement will cause a spider to come to that area and ravel up the fly in its web. This is an example of an organism (spider)  responding to outer stimulus. The picture I posted is of a plant whose leafs are moving closer to the sun. whenever an organism responds to an action or stimulus then the action of taxis has taken place.

Leave a comment

Filed under Uncategorized

Lichen (Animal relationship picture will not upload)

Lichen

The term lichen is used to describe a symbiotic relationship, a relationship in which both parties/organisms benefit. This relationship has to be between a fungus and a photosynthetic plant. This basically means that a fungus and a tree put together are considered to be a lichen relationship. There are many examples of this relationship in nature. Whenever a person sees dark green or brown mulch on a tree this is an example of this. The reason that this is considered a symbiotic relationship and not a parasitic relationship is because the mulch gains shelter and support while the trees just have added vegetation that aids it in its development. 

Leave a comment

Filed under Uncategorized

Predation (Animal Eating Picture will not upload)

Predation

Predation can be described as the act of a predator consuming or killing another organism. Predation usually ends up with the predator eating or absorbing the other organism’s tissue. Predation occurs at many different levels of the animal’s kingdom. We can see it from a simple ant eating a larger insect to a lion chasing down an antelope to eat. Predation is a vital part of the animal kingdom. Not only does predation refer to one large organism eating a smaller one. But it also refers to an organism consuming a plant for it vital nutrition. Thus an herbivore consuming a plant also fits into the category or predation.

Leave a comment

Filed under Uncategorized