Thursday, September 4, 2008
HELLO!!
I am back with MORE info about corals!!
This time, i am telling you about the physical characteristics of the corals.
1.A coral polyp is a tubular saclike animal with a central mouth surrounded by a ring of tentacles. The end opposite the tentacles, called the base, is attached to the substrate.
2.Depending on the species, coral polyps may measure less than an inch to several inches in diameter
3.Coral colonies also vary in size. Some corals form only small colonies. Others may form colonies several feet high
4.Natural pigments in coral tissue produce a range of colors including white, red, orange, yellow, green, blue, and purple.
5. Algae that live within the tissues of some corals may make the coral appear brown, green, or orange.
6.Depending on the subclass, a coral polyp's tentacles are arranged in multiples of six or eight.
7.The tentacles contain microscopic stinging capsules called nematocysts. A nematocyst is a bulbous double-walled structure containing a spirally folded, venom-filled thread with a minute barb at its tip. A tiny sensor projects outside the nematocyst. When the sensor is stimulated physically or chemically, the capsule explodes and ejects the thread with considerable force and speed. The barb penetrates the victim's skin and injects a potent venom.(ouch!!)
THENGHUI
adapted from:http://www.seaworld.org/infobooks/coral/home.html
7:25 PM
KIMBERLEY, ESTHER, THENG HUI.
What we want to become in the future: Marine biologists! :DD
Kuo Chuan Presbyterian Primary School.
Primary 6Execellence.
Teacher in charge : Ms Suhana A Hamid.
We hope everyone out there can support us by preserving the corals and also taking some time to read our posts about saving them, and helping us stop the destruction of the reefs!
click this picture to visit the IYOR website!
International Year of the Reef 2008
The ICRI International Year of the Reef 2008 is a worldwide campaign to raise awareness about the value and importance of coral reefs and threats to their sustainability,
and to motivate people to take action to protect them.
All individuals, corporations, schools, governments, and organizations are welcome and actively encouraged to participate in IYOR 2008.
Free chat widget @ ShoutMix
What we want to become in the future: Marine biologists! :DD
Kuo Chuan Presbyterian Primary School.
Primary 6Execellence.
Teacher in charge : Ms Suhana A Hamid.
We hope everyone out there can support us by preserving the corals and also taking some time to read our posts about saving them, and helping us stop the destruction of the reefs!
click this picture to visit the IYOR website!
International Year of the Reef 2008The ICRI International Year of the Reef 2008 is a worldwide campaign to raise awareness about the value and importance of coral reefs and threats to their sustainability,
and to motivate people to take action to protect them.
All individuals, corporations, schools, governments, and organizations are welcome and actively encouraged to participate in IYOR 2008.
Free chat widget @ ShoutMix
Global warming puts HALF of th reefs at risk! :O
Some of our friend's sites!
Some of our friend's sites!
ABEL'S GROUP BLOG.
JETHRO, JON, ETHAN'S GROUP BLOG.
CHANGMING'S GROUP BLOG.
JANSEN'S GROUP BLOG.
Help save th corals!
The nature convervancy.
July 2008
August 2008
September 2008
October 2008
Host: Blogger
Layout © thebikiniboy
JETHRO, JON, ETHAN'S GROUP BLOG.
CHANGMING'S GROUP BLOG.
JANSEN'S GROUP BLOG.
Help save th corals!
The nature convervancy.
July 2008
August 2008
September 2008
October 2008
Host: Blogger
Layout © thebikiniboy