Charles Darwin: Theories of Biodiversity

Charles Darwin/Cladograms: Theories of BiodiversityMr. NicholsPHHSCartoon of the Day

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QuotesIf you want to know who a man is listen to their words. -Chinese Proverbs

Be careful of your thoughts, they become who you are.-Ghandi

You are the product of your beliefs and your works. -Mr. Nichols

Introducing the Cladogram

Are these Cladograms showing the same thing?Introducing the Cladogram Contd

JaguarPeruvian JaguarTigerSnow LeopardLynxLionCladogram with traits

Mr. Nichols Predators and Prey

Crab SpiderN.A Glaring SeahorseCartoons of the Day

Organism of the Day!!!Velociraptor: Velociraptor mongoliensis

Kingdom: Animalia

Class: Reptilia

Node: Dinosauria

Suborder: Theropoda

Raptor Facts!Existed approximately 75 to 71 million years ago during the later part of the Cretaceous Period.. It was a bipedal, feathered carnivore with a long, stiffened tail and an enlarged sickle-shaped claw on each hind foot, which is thought to have been used to kill its prey.Adults measuring up to 6.8 ft long, 1.6 ft high at the hip, and weighing up to 33 lb The skull, which grew up to 9.8 in long, was uniquely up-curved, concave on the upper surface and convex on the lower. The jaws were lined with 2628 widely spaced teeth on each side, each more strongly serrated on the back edge than the frontpossibly an adaptation that improved its ability to catch and hold fast-moving prey.Cold-Blooded KillerVelociraptor was probably warm-blooded to some degree, as it required a significant amount of energy to hunt. Modern animals that possess feathery or furry coats, like Velociraptor did, tend to be warm-blooded, since these coverings function as insulation. However, bone growth rates in Velociraptors and some early birds suggest a more moderate metabolism, compared with most modern warm-blooded mammals and birds.

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Some Fancy Terms

Plesiomorphy: A characteristic that is shared by all members in the Cladogram.Apomorphy- A derived trait that separates two or fewer species from the rest of the Cladogram. Graphs from Data

Problem of the Day

Draw the corresponding data table, circle any Plesiomorphic traits and square Apomorphic traits.Problem of the Day

Draw the corresponding data table, circle any Plesiomorphic traits and square Apomorphic traits.Charles Darwin/Cladograms: Theories of BiodiversityMr. NicholsPHHSCartoons of the day!

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Organism of the Day Giant Squid: Architeuthis duxKingdom: AnimaliaPhylum: MolluscaClass: CephalopodaOrder: Teuthida (Squid)

Giant Facts!!!!Recent estimates put the maximum size at 43 ft for females and 33 ft for males. The mantle is about 6.6 ft long (more for females, less for males), and the length of the squid excluding its tentacles is about 16 ft.

There have been claims of specimens measuring 66 ft or more, but no giant squid of such size has been scientifically documented.More Facts!Like all squid, a giant squid has a mantle (torso), eight arms, and two longer tentacles (the longest known tentacles of any cephalopod).

The arms and tentacles account for much of the squid's great length, making giant squid much lighter than their chief predators, sperm whales.Sweet Facts!Giant squid have small fins at the rear of the mantle used for locomotion. Like other cephalopods, giant squid are propelled by jet by pulling water into the mantle cavity, and pushing it through the siphon, in gentle, rhythmic pulses. Giant squid have a sophisticated nervous system and complex brain, attracting great interest from scientists. They also have the largest eyes of any living creature1 ft in diameter. Large eyes can better detect light (including bioluminescent light), which is scarce in deep water. It is thought the giant squid cannot see color, but they can probably discern small differences in tone, which is important in the low-light conditions of the deep ocean.Facebook Pics

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