2012 S2-05 Science Blog
Friday, 27 April 2012
Thursday, 19 April 2012
Wednesday, 11 April 2012
Symbiosis - Commensalism
Names : Theodor Lim, Jovan Ng and Kevin Tay
Relationship : Commensalism
Animal A : Army Ants
Animal B : Bird
Who benefits : The bird
The bird feeds on the insects or arthropods that the ants have left behind after their march. There is no break in food availability because ants swarm in almost all seasons and weather.
Symbiosis - Parasitism
Team members: Ryan Pek, Charles, Kuang Seng
Relationship: Parasitism
Animal A: Tick
Animal B: Dog
The tick gets nutrients from the dogs blood by sucking it out and can cause diseases to the dog such as Lyme disease and babesiosis.
Symbiotic relationships - plants(parasitism)
Team Name: Group 5 (Choy Rui Zhi, Isaac Gan, Malcolm Ang)
Relationship: Symbiotic relationships between plants (parasitism)
Plant A: Mistletoe (gets nutrients from the host plant)
Plant B: Silver Birch (nutrients gets lost)
Symbiosis-Predator and Prey relationship
Group members: Denzel Supriyadi, Ryan Chew, Nicholas Tan and Ruo Song
Relationship: Predator and prey relationship
Frog: Eats the fly and get nutrients
Fly: Gets eaten
Relationship: Predator and prey relationship
Frog: Eats the fly and get nutrients
Fly: Gets eaten
Symbiosis - Mutualism
Team Members: Matthew Phong, Leonard See, Yan Kai and Shawn Liew.
Relationship: Mutualism
Animal A: Red-Billed Oxpecker
Animal B: Impala
Source: http://en.wikipedia.org/wiki/File:Impala_mutualim_with_birds_wide.jpg
The Red-billed Oxpeckers feed on the ticks on the Impalas. The Red-billed Oxpeckers have a supply of food while the itch that the Impalas have will be removed due to the Red-billed Oxpeckers eating away the ticks which causes the itch.
Relationship: Mutualism
Animal A: Red-Billed Oxpecker
Animal B: Impala
Source: http://en.wikipedia.org/wiki/File:Impala_mutualim_with_birds_wide.jpg
The Red-billed Oxpeckers feed on the ticks on the Impalas. The Red-billed Oxpeckers have a supply of food while the itch that the Impalas have will be removed due to the Red-billed Oxpeckers eating away the ticks which causes the itch.
Saturday, 7 April 2012
2012 Environmental Science Lesson Materials
Dear all,
You can access 2012 Science Lesson Materials in the link below (e.g., 2012 Environmental Science Biodiversity)
Thursday, 29 March 2012
Activity 2
Plantae
Flowering Plants
Bear flowers
Males have stamens
Females have carpels
Bear fruits
Bear Seed-containing fruit
Non Flowering Plants
Do not have fruits or flower ( e.g. horsetails and Ferns)
Flowering Plants
Bear flowers
Males have stamens
Females have carpels
Bear fruits
Bear Seed-containing fruit
Non Flowering Plants
Do not have fruits or flower ( e.g. horsetails and Ferns)
Reproduces by spores
Activity 2
Birds:
'Reptiles
-Only group of animals to posses feathers
-Has bills, instead of teeth. Bills are toothless mandibles covered with a horny sheath of keratin
-Egg laying
-Warm blooded
Fish:
-Presence of gills
-Have scales and fins
-Cold blooded
-Egg laying
Mammals
-Have hair/fur
-Jaw Joint
-Mostly give birth to young, some would lay eggs (e.g. platypus)
- Tooth replacement
- 3 middle ear bones
- females produce milk to feed their young
'Reptiles
-Dry skin with scales or scutes
-Spinal columns and a strong skeletal system with a rib cage.
-Cold Blooded
-Vertebrates
-No External Ears
Amphibians
-Breathe with skins and gills
-Moist Smooth Skin
-A three-chambered heart
-Webbed Feet
-Lays many egg
s
Activity 2
Done by: Shawn Liew Hong Wei, Foong Yan Kai, Nicholas Lee Zhen Wei, Jovan Ng and Sherman Tan Xuanming
Monera characteristics:
- Unicelluar
- Prokaryotic (Absence of nucleus)
- Presence of cell wall
Protista characteristics:
- Eukaryotic (Presence of nucleus)
- Presence of mitochondria
- Lives in moist environment
- Unicelluar
Fungi characteristics:
- Non Vascular
- Eukaryotic (more closely related to animals than plants)
- Presence of chitinous cell wall
- Reproduced by spores
- Obtain nutrients by absorbing from dead nutrients
References:
1. http://answers.yahoo.com/question/index?qid=20080901224234AAS8t1T
2.http://www.uwlax.edu/biology/volk/fungi3/sld009.htm3. http://www.wisc-online.com/Objects/ViewObject.aspx?ID=bio304
3. http://wiki.answers.com/Q/What_are_characteristics_of_the_kingdom_monera
4. http://www.tnmanning.com/id151.htm
Monera characteristics:
- Unicelluar
- Prokaryotic (Absence of nucleus)
- Presence of cell wall
Protista characteristics:
- Eukaryotic (Presence of nucleus)
- Presence of mitochondria
- Lives in moist environment
- Unicelluar
Fungi characteristics:
- Non Vascular
- Eukaryotic (more closely related to animals than plants)
- Presence of chitinous cell wall
- Reproduced by spores
- Obtain nutrients by absorbing from dead nutrients
References:
1. http://answers.yahoo.com/question/index?qid=20080901224234AAS8t1T
2.http://www.uwlax.edu/biology/volk/fungi3/sld009.htm3. http://www.wisc-online.com/Objects/ViewObject.aspx?ID=bio304
3. http://wiki.answers.com/Q/What_are_characteristics_of_the_kingdom_monera
4. http://www.tnmanning.com/id151.htm
Activity 2
An invertebrate is an animal without a backbone.
Invertebrates is very diverse, with many different species such as:
Centipedes
Crustaceans
Insects
Spider
Worms
Mollusks
Coral
Only 1 characteristics is common among the invertebrate; lack of a backbone, thus making them soft-bodied.
They have 2 types of body, radical symmetry and bilateral symmetry.
Some have a exoskeleton, some have shells.
By:
Nicholas Tan
Choy Rui Zhi
Charles
Leonard
Kevin
By:
Nicholas Tan
Choy Rui Zhi
Charles
Leonard
Kevin
Wednesday, 28 March 2012
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