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Question:Hi, I have a homework question was wondering if anyone can help me out. Can a diverging lens form a real image under any circumstances?

Answers:um sorry but im not answering im just telling you thanks for the post on my question :) when i can i will pick you as the best answer sorry to keep your hopes up if you thought that i would give you an answer :)

Question:I have a few more questions related to the topic question... 1. The different breeds of dogs are different species, right? 2. Is adaptive radiation a type of divergent evolution, or are they different, separate concepts? 3. Are the different breeds of dogs an example of divergent evolution or adaptive radiation? They diverged from one common ancestor (wolf, or wolf-like creature), right? 4. Is there another example of divergent evolution other than the pentadactyl limb or apple maggot example that every textbook seems to use? Thx!

Answers:For two breeds of dog to be different species, they would have to not be able to produce viable offspring together. Since most domesticated dogs can breed and create viable offspring (such offspring must also be able to breed successfully) together, then they must all be the same species. I don't know what "divergent evolution" means exactly, but adaptive radiation is where from one species many closely related species come to be. Yes, different breeds of dogs is evidence for adaptive radiation. But the best example of new species being created is wolves to wolf-like creatures to dogs----remember, different species can't produce viable offspring together. #4?

Question:Provide an example of convergent and divergent evolution, adaptive radiation, and co-evolution. Then, respond to the following: Choose one of the examples you provided and discuss the implications this example may have for future humans. Please please help me with this one.......

Answers:Convergent evolution: Two different species adapt similarly when they share similar niches. Australia has several examples. Tasmanian tigers are very similar to wolves or dogs. The marsupial lion had many features similar to cats They even had a saber toothed version of a marsupial similar to saber toothed cats. divergent evolution: When species separate into dissimilar niches, they evolve quite differently. The formation of limbs in early amphibians compared to their fish ancestors is an example. Adaptive radiation: When a species spreads in to different niches it forms multiple species. A classic example is the Darwin's finch. The common ancestor split into several species as it occupied the various niches. Coevolution is where two species evolved together. Many species of plants produce flowers that only bats can fertilize. The bats evolved to take advantage of the flowers and the flowers rewarded the bats with nectar and flowering at night. Coevolution of humans and cows: The cows allowed us to exploit land that wasn't suitable to crops. They greatly increase our food supply. Perhaps in the future we will use them in many different ways. The way they convert cellulose to sugar in the guts with microbes could lead to the easy conversion of grass into alcohol to power our cars.


Answers:{(-1)^n : n is in N} = {-1, 1, -1 , 1, ...} is bounded between -1 and 1 (inclusive), but never tends to a limit (since it has subsequences {1,1,...} and {-1, -1, ...} that converge to different limits). I hope this helps!

From Youtube

Sequences - Examples showing convergence or divergence :Sequences - Examples showing convergence or divergence. For more free math videos, check out PatrickJMT.com

Diverging Lens Ray Trace & Imaging Distance Example :