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Ch 19 essay
Terms in this set (12)
They found lobe finned fish fossils that had similar characteristics to vertebrates. The fossils undeclared that they had neck structural modifications that strengthened its backbone and skull, and four limbs with fingers and toes. However, it's liba couldn't support the animal on land and its ribs would've collapsed outside of water
Describe the characteristics of lobe finned fishes that make them the most likely aquatic ancestors of land vertebrates. Scientists expected the transitional forms to be fishes with lungs that geadually developed legs as they dragged themselves from pool to pool. What londs of fossils did they find?
Adaptations such as the lack of teeth , tail supported by a few small vertebrae, hollow shafted feathers, and honeycombed structure bones contribute to reducing weight for flight. Insulating feathers maintain its temperature and their high metabolic rate which is supported by efficient circulatory system and their lungs are more efficient when extracting oxygen from the air which provides a great amount of energy.
Describe adaptations of birds for flight
Reptilian skin is waterproofed with The type of protein keratin which keeps its body from giant out and is covered and scales. Reptiles obtain most of the oxygen with their lungs, using their rib cage to help ventilate their lungs. Amphibians must be surrounded by moisture to prevent them from drying out. Most of the beans are found in damn habitat where the moist skin supplement their long for gas exchange.
The spade foot toad of The southwestern United States is an unusual amphibian; it is capable of surviving in the desert. If few amphibians can tolerate dry conditions, but many reptiles - horn toad, Rattlesnakes, and desert tortoises - thrived in hot, arid regions. In what ways are reptiles better adapted to live in the desert then amphibians?
Primates can be distinguished by the following characteristics: limber shoulder and hip, five digits of grasping feet and hands including the opposable thumb, eyes set close together on the front of the face, relying more on our side and less on this and the smell then other mammals.
Who is the special has characteristics of primates
Human share 99% of our genome with chimpanzees, our closest living relative. Chimpanzee have been studied extensively, in many aspects of their behavior resemble human behavior. Researchers have demonstrated repeatedly that chimpanzees can learn human sign language. We also share a gene called FOXP2 which enables symbolic communication
Which primate is the closest living relative of humans? What is the evidence what is close relationship?
A- prosimians rely heavily on smell have small brain small bodies are nocturnal vertical leap her think climbers and have stereoscopic binocular vision.
Anthropoids have larger brains and bodies rely own vision or die neural have fully close eye sockets.
Anthropoid vs prosimians
The New World monkeys are located in Central and South America, are arboreal, have a wider far apart nostrils, and has a tail. All the little monkeys lack a prehensile tail, nostrils open downward, some are arboreal and others are ground swelling..
Old world monkeys vs new world monkeys
Keeps like a tail, have a long Ormes, short legs, or vegetarian, how large your brains relative to body size, and flexible behavior, or Nicole walkers, make and you simple tools, and have symbolic communication.
Monkeys versus apes
Chimpanzees and humans are both from the eight group chimpanzees have two species wow humans are only capable of having one. Chimpanzees have 48 chromosomes will humans have 46, both omnivores both walk up right and both can use and make tools
Other apes ve humans
The ancestors of humans originated in Ethiopia, Africa about 200,000 years ago. Also show that living humans are most closely related to one another then to Neanderthals, do you know who studies indicate that Europeans in Asian share more recent common ancestor in the mini African images represent earlier branches on the human tree. By comparing the Y chromosomes of mails from there is this geographic region, researchers were able to Inferno divergence from a common African ancestors.
Describe genetic evidence that points to win in where Homo sapiens originated. Do fossils support these data?
Amphibians and relatives are cold-blooded and depend on their environment to regulate their body temperature. Due to the cold temperature in the Arctic and Antarctic reptiles and amphibians are unlikely to survive.
Why do you think there are so many birds in the most virtually no reptiles or amphibians in the Arctic and Antarctic?
Although language, use of tools, and self awareness or cited as human characteristics however apes have also showed these human Characteristics. Chimpanzees can learn sign language, can you make and use tools, and display so for me where it is when presented in front of a mirror by making different expressions.
Language, use of tools, and self awareness or often Friday as to make characteristics - traits that set up part from other members of the animal kingdom. Do these characteristics really appear to be unique it's a human? Explain.
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