biology report for habituation of snail
TITLE
Habituation of snail.
OBJECTIVE
To investigate the effect of habituation of snails to a stimulus
To develope certain experiment skills, such as working safely, producing valid results, recording results and drawing valid conclusions from results.
INTRODUCTION
The snails
Figure 1: Garden snail
Taken from http://abugblog.blogspot.com/2011/05/handsome-snail.html
Snails are one of the earliest known types of animals in the world. There is evidence that they evolved more than 600 million years ago. They are able to adapt to a variety of living conditions and they don’t require large amounts of food. They have been able to continually evolve to survive the conditions around them.
Snails belong to a group of animals with a soft body called molluscs which are related to oysters, clams, and other shellfish. Characteristically they have soft, unsegmented bodies. Normally, their soft bodies are protected by a hard shell. Garden snail also known as Helix aspersa. The body of the snail is long, moist and slimy. It has a shell to protect its soft body. The shell of a snail is made up of calcium carbonate. The shell becomes very strong and remains that way as long as the snail consumes a diet that is full of calcium. When the snail is disturbed, it simply withdraws or pulls itself back into its shell. The snail also retreats into its shell and seals the entrance in dry weather to protect its body from drying up. A snail is most active at night and on cloudy days. During very cold weather or winter, it hibernates in the ground.
Habituation
Habituation is a decrease in response to a stimulus after repeated presentations. As a procedure, habituation is the repeated presentation of an eliciting stimulus that results in the decline of the elicited behavior (the process of habituation). The most interesting thing about habituation is that it can occur at different levels in the nervous
Habituation of snail.
OBJECTIVE
To investigate the effect of habituation of snails to a stimulus
To develope certain experiment skills, such as working safely, producing valid results, recording results and drawing valid conclusions from results.
INTRODUCTION
The snails
Figure 1: Garden snail
Taken from http://abugblog.blogspot.com/2011/05/handsome-snail.html
Snails are one of the earliest known types of animals in the world. There is evidence that they evolved more than 600 million years ago. They are able to adapt to a variety of living conditions and they don’t require large amounts of food. They have been able to continually evolve to survive the conditions around them.
Snails belong to a group of animals with a soft body called molluscs which are related to oysters, clams, and other shellfish. Characteristically they have soft, unsegmented bodies. Normally, their soft bodies are protected by a hard shell. Garden snail also known as Helix aspersa. The body of the snail is long, moist and slimy. It has a shell to protect its soft body. The shell of a snail is made up of calcium carbonate. The shell becomes very strong and remains that way as long as the snail consumes a diet that is full of calcium. When the snail is disturbed, it simply withdraws or pulls itself back into its shell. The snail also retreats into its shell and seals the entrance in dry weather to protect its body from drying up. A snail is most active at night and on cloudy days. During very cold weather or winter, it hibernates in the ground.
Habituation
Habituation is a decrease in response to a stimulus after repeated presentations. As a procedure, habituation is the repeated presentation of an eliciting stimulus that results in the decline of the elicited behavior (the process of habituation). The most interesting thing about habituation is that it can occur at different levels in the nervous
References: Books 1. Edexcel Biology for A2, Pearson Publication - Fullick A Website 1. http://www.animalbehavioronline.com/habituation.html 2. http://www.snail-world.com/Snail-Anatomy.html