Tuesday, August 27, 2013

Lost Identifier


While my time at CSA, the Harvard program I do, I lost my rubber band which I used as an identifier in previous posts. At the time I lost it I went on a trip to the aquarium and I took a variety of pictures I could use on this summer homework assignment. However I did not have an identifier to indicate I took the pictures. But I do have videos that prove I was there and that I did take the pictures, so I hope this can excuse the lack of an identifier.

Monday, August 26, 2013

Asexual Reproduction

Asexual Reproduction:
Jellyfish are organisms that do both asexual and sexual reproduction. Asexual reproduction is a form of reproduction where the offspring is generated from only one parent. This is down by the parent splitting into two and creating an identical offspring. This process is the opposite of sexual reproduction which requires two organisms to have intercourse and mix genetic material to create an offspring. The photo of the jellyfish reveals the asexual properties of jellyfish. The jellyfish are able to go through asexual reproduction and make a vast amount of copies that are identical.

Mating Behavior

Mating Behavior:The photo reveals two penguins who are showing mating behavior. Mating behavior is the pairing of individuals of opposite sexes to result in reproduction. The interactions in the photo reveal the close intimate relations of the two penguins. This in turn shows how they want to mate and reproduce. This image is a great example of the mating behavior shown between penguins.

Adaptation of an Animal


Adaptation of an Animal:
An adaptation is a change that an organism makes in order to respond to its environment and enhance its chances of survival. The photo reveals sharks at the aquarium that have a unique adaptation that allows them to camouflage with the surrounding sandy environment. The patterns of yellow and stripes of black make the sharks seem like they are not even there which helps them when they are preying on the food they want. This picture reveals an adaptation made by an animal to increase its survival.

Genetic Variation Within a Population

 
Genetic Variation Within a Population:
Genetic variation is defined as the differences within the genetic makeup of organisms. Genetic variations within a population are observed through the phenotype, the physical characteristics shown because of the genetic makeup. In the photo you see the genetic variation within the population of leaves. Some leaves are big while others are small, some are colored dark green, while others are yellow. These differences are what make the genetic variations among a population.

Exoskeleton

Exoskeleton:
Creatures with exoskeletons have their skeleton on the outside of their body to protect their internal organs. In other words, creatures with hard shell exteriors have an exoskeleton. All arthropods have an exoskeleton, which means that cockroaches also have an exoskeleton since they are arthropods. In addition it is common sense that cockroaches have an exoskeleton because with the naked eye they look like the have a hard body. Therefore, the photo of the cockroach reveals a photo of a creature with an exoskeleton.

Endotherm

Endotherm:
An endotherm is an animal that is capable of the internal generation of heat. In easier terms the word endotherm is a synonym to warm-blooded animals. This word is the opposite of the word ectotherm, which defines cold-blooded animals that depend on their external environment for heat. The photo is a photo of humans which are warm-blooded animals that generate their own heat.