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Charles Darwin/Cladograms: Theories of Biodiversity. Mr. Nichols PHHS. Cartoon of the Day. Cartoon of the Day. Cartoon of the Day. Cartoon of the Day. More fun!. Quotes. “If you want to know who a man is listen to their words.” -Chinese Proverbs
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Charles Darwin/Cladograms: Theories of Biodiversity Mr. NicholsPHHS
Quotes • “If 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 Cont’d Jaguar Lynx Snow Leopard Tiger Lion Peruvian Jaguar
Mr. Nichols’ Predators and Prey N.A Glaring Seahorse Crab Spider
Organism of the Day!!! • Velociraptor: Velociraptor mongoliensis • Kingdom: AnimaliaClass: Reptilia Node: DinosauriaSuborder: 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 ftlong, 1.6 fthigh at the hip, and weighing up to 33 lbThe 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 26–28 widely spaced teeth on each side, each more strongly serrated on the back edge than the front—possibly an adaptation that improved its ability to catch and hold fast-moving prey.
Cold-Blooded Killer • Velociraptor 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.
Some Fancy Terms Apomorphy- A derived trait that separates two or fewer species from the rest of the Cladogram. Plesiomorphy: A characteristic that is shared by all members in the Cladogram.
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 Biodiversity Mr. NicholsPHHS
Organism of the Day • Giant Squid: Architeuthis dux • Kingdom: 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 creature–1 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.
