%BIOLOGY

Bi o LO G Y

-Snails(05/04)
-Reproduction in plants(09/03)

{/Forgive and forget --

Saturday, April 10, 2010 ( 11:00 PM )

To miss natha:
i am sorry for letting you down twice in the row,but to say the truth,i didn1t do it intentionally as i know that you are a very nice teacher and by the way, i also like ur teaching as most of the thing that you had taught are quite easily understood and i really think biology is an intersting subject to study.Therefore, i hope you will forgive the mistakes that i had done and not hold it against me as i really feel ashamed to face you for the stupid mistakes that i had commited.

DONE by :eric

{/HOw do snails reproduce??? --

( 2:57 PM )

Before i was asked to do my research about the reproduction of snails, i didn`t even bother to notice the little fellow that had been living in this world with us.Thus, how would i even know how it reproduce!Thankfully,my biology teacher ringed the bell in my heads and i immediately went to do a reasearch about it.Quess what???Snails are considered to be hermaphrodites which means that they contains both the males and females reproductive system within them.Their reproductive organs is located on the side of their body which is close to the top of their body as well so as to allow for easier abilities to mate and to grow the baby snails.
Snails will go through a complete mating ritual with each other, which will usually lasts for an average of two to twelve hours. At the end of this ritual, the pair will fertilize the eggs in the other.When the eggs are fertilized, they will go through a process of growth inside the snail.It will typically take a snail egg two to four weeks in order to develop. As soon as they hatch, they will immediately move into a survival mode as their shells will still be in a weak form. They will start to find calcium as soon as they hatch by either eating their own egg or eating other eggs in order to get the extra nutrients. It will take around three months for the snails to completely form. After the snails are completely developed, they will detach from their parents and move into a different shell.

Intersting???0.0
To me,it is really very intersting although there are others amazings things that we have not yet uncovered.i had always wondered what are the uses of their shell and what would happens if we removed the shell aways from them.I thinks that We should learns from the snails their independance and long for survival and also their perservance as life is like that.If we don`t fight for ourselves and wait to be spoon feed, we will have to wait in our dreams.....This also applies to us as if we just brag about our future ambitions without any actions,in the end we will not get any taste of success.So,Guys,lets follow the snails........
Lastly, some more info for yours to take note:NOt all snails are hermaphrodites, some freshwater and marine species, specifically including Apple Snails and periwinkles still have a separate male and female species.Don`t ever underestimate the snails,we have lots to learn from them.Thus,we should not harm them as they are not that disgusting.they also have lives like us,so why should we insults it .From now,i will treats them with the respects they deserve.
Credits to:http://www.snail-world.com/How-do-Snails-Reproduce.html
Done By:Eric of 4E1

{/snails. --

( 3:02 AM )

Ever since the incident during my childhood times. I have never, never ever thought about snails. In my life, i would always try to abort the topic about snails. Snails had been a 'nightmare' to me.

But till today, i would say thanks to biology. It made me abort the disgusted feelings towards a snail.

Yeap, my homework made me 'forgive' snails. My hate towards the snail made me totally ignore the existence of such creature. How ignorant i am! Firstly, let me pour out the sorrows of my 'nightmare'. I couldn't remember exactly how old i was, but i remember i was in kindergarden, and I WOULD NEVER forget the process of the incident.. This silly CHILDISH friend of mine, took a snail and put it on my head! And remember, i was mere fully 5 years old at that time. As terrified as a child, i scream to the core when i took it down myself. I could feel the slimy texture of it. It was horrible. Pity me? i feel pathetic now.

Well, at least biology have impress me with snails. I won't hate them anymore, but still, i'm scared of them. I have really no idea, how snails even exist.

I didn't know that there were different types of snail. No even to know how they reproduce.

Through my research, i realise that snails actually lay eggs. The only difference is that most snails have both “male” and “female” reproductive organs. Doesn't this mean that they could actually mate themselves? Well, believe it or not, they do! Am i suppose to say amazing? And snails also has a special name - Hermaphrodites. There are some snails that do not follow this adaptation. Like the Apple snail and periwinkles. Apple snail is the size of an apple. *swallow throat* i couldn't imagine seeing one as big as that, i think i'll scream.

Snails give birth too! Isn't it such a complicated creature?

The only snail that give birth is the trapdoor snail, also know as pond snail. ( This is the one that i took down from my head! ) The life span of a snail does not last for more that 5 - 7 years, therefore all snails are consider sexually mature by the time they are 1 year old. Their reproductive organs are at the side of their body allowing easier abilities to mate and grow the baby snails.

They are so slow that, i wonder how long does it take for them to mate. Well, the answer is that they communicate to each other for an average of 2 - 12 hours. A snail can also carry 100 eggs at a time. I just realise that snails actually resemble sea turtles, they leave their eggs under the ground. Some are buried under the dirt, some in cool places, or even rocks to keep them protected.

Typically, a snail egg takes 2 - 4 weeks to develop and then hatches.Their reaction is to find calcium as soon as they hatch by either eating their own egg or eating other eggs in order to get the extra nutrients. It will take around three months for the snails to completely form. Should i feel horrified?

Yeap, that's all i have discover. Since i have no idea about this in 15 years of my life. At least its better than not knowing about snails for the whole of my life.

Thank you bio, for relieving my stress towards the snail. :)

I wont look down at snails anymore. Maybe i'll just stay away from them. And for your information, the exception snail i'm not afraid of will be spongebob's Gary. *mao~*

By, Cheng Yee.

{/ --

Saturday, April 3, 2010 ( 8:40 PM )

Reproduction in Snails.

By Hakim Sapari.

Genetic Makeup of Snails.

Snails will be able to reproduce differently than almost any other type of creature because of their species and their make-up. Snails are considered to be hermaphrodites. This means that every snail will have both male and female reproductive organs. This is especially consistent among land snails and most marine snails. The only snails that have not adapted this attribute is some freshwater and marine species, specifically including Apple Snails and periwinkles. These two types of snails still have a separate male and female species.

All snails will be considered sexually mature by the time they are one year old. This is because the life span of most species does not last for more than five to seven years, allowing for a faster growth rate of the species. The make-up of the snails will include their reproductive organs on the side of their body. This is close to the top of their body as well, allowing for easier abilities to mate and to grow the baby snails.

Growth Process.

The mating practices of snails is one that allows for new snails to be brought into the dirt and water at a consistent rate. Snails will go through a complete mating ritual with each other, usually which will communicate to the other snail for an average of two to twelve hours. At the end of this ritual, the pair will fertilize the eggs in the other. It is known that a snail can carry up to 100 eggs at a time.

When the eggs are fertilized, they will go through a process of growth inside the snail. This begins with the fertilization moving the snails into a specific amount of development inside the embryo. This takes place with the snails laying eggs and burying them into a cool place in order to develop. For land snails, they will be buried underneath the dirt in order to be cared for. With marine snails, the eggs will be placed next to a solid area, such as a rock. This will allow the eggs to stay in the same place and develop without being harmed.

It will typically take a snail egg two to four weeks in order to develop. As soon as they hatch, they will immediately move into a survival mode. This is because their shells will still be in a weak form. Their reaction is to find calcium as soon as they hatch by either eating their own egg or eating other eggs in order to get the extra nutrients. It will take around three months for the snails to completely form. While this takes place, they will stay in a nest that has been built for them, with the transformations being seen through a change in color, from a clear color into a blue then into the adult form that is representative of the species. After the snails are completely developed, they will detach from their parents and move into a different shell.

The mating procedures of snails is one that moves through a specific process that helps the species to grow and survive in their respectable areas. From the beginnings of sexual maturity to finding the rate mate to the hatching of the eggs, is a specific way in which the snails are able to move into a world of growing a larger snail family.

Source: http://www.snail-world.com/How-do-Snails-Reproduce.html