Appendages College Essays Samples For Students

1. Arthropods usually have a distinct head. How would you define a “head”? What are the advantages and disadvantages of such a body region?
The head is the rostral most section of an organism usually encompassing particular sensory organs such as the brain, ears and mouth among other fundamental parts of an organism.

Advantages of the head

The head of an organism allows for closer synchronization of specialized senses with the brain. That is the central point controlling the body.
The head of an organism is disposable, and the organism only lives to safeguard a single part of the body properly.

Disadvantages

It is the ...

Identification of each individual from the massive inventory of living organisms requires appropriate classification system. This system allows not only identification of all specimens that are already collected, but also allows identification of the newly discovered organisms in the future. The classification system is robustly based on science and logic, so this system is universally applicable.
The classification system starts by grouping the specimens into two major categories namely animals and plants. In general, animals are grouped by the presence of appendages that implies the ability to move on their own while plants are grouped together based on ...

Over a period of 400 million years, animals in the vertebrate category have evolved to a diverse array of life adaptations on earth. Vertebrates represent animals that are most familiar with people and are used for food, adopted as pets and deployed for labor. They include fish, reptiles, birds, amphibians and mammals. The classification system that groups vertebrates according to each of the classes that have been mentioned above utilizes genetics, anatomy, and the evolutionary relationships. Animals are classified starting with the kingdom which is a large body that encompasses animals that have similar characteristics and end up with ...

Experiment: Investigating the integumentary system.

Introduction
Scientifically, the integumentary system consists of the skin and its appendages. It functions primarily as an outer protection for internal organs from bacteria. Superficially, the skin serves as a buffer to trauma. Its integrity decreases incidences of invasion by harmful organisms even when breakage occurs. (Martini 2009).
Beside these basic functions, the integumentary system is also responsible for insulation by assisting in regulating body temperature; production of hair; excretion of waste through pores and a sensory station for the transmission of impulses when touched. Sensory receptors present within the subcutaneous layers are also pain transmitters. (Watson 2011)

Background to aims

However, ...