Tag Archive | "evolution"

Questions About Dinosaurs And Evolution.?


So i have been thinking about this for a while now , When i think of evolution i think of something that came from nothing and then kept growing with time in size but when you look at the animal sizes it started huge and got smaller and smaller with time , My other question is Do you believe in the evolution theory that is suggested by scientists ? I’m not indicating or asking about religious , Its just when i look at the wild life and humans its just much much much more complicated than to be explained in our life time and so much questions to be answered, Last do you know any good movies or documentaries about these kind of subjects ?
Thank you , I hope my English was clear for you to understand .

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I Have A Chemistry Question Regarding Evolution?


I am actually looking for a scientific answer because i want to avoid plugging the typical “Goddidit” to this but if no one can provide an exploitation i guess I don’t have a choice.
So we learned in AP Chem that with regards to delta S (change in order) things are constantly becoming more disordered or unchanged (Delta S of the surrounding + Delta S of the system is either =0 or <0, Delta S of the universe). So if the universe is constantly moving in spontaneous irreversible reactions into a disordered state, how did complex organisms form? Wouldn't that imply That everything should be breaking down instead of forming and rearranging them self into living breathing conscious beings? Is this against the law of nature? I know natural selection occurs but could this be a hindering factor in the theory of evolution?

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Need Help On Evolution Fast!?


I desperately need help answering some questions on evolution…most questions that I’m having trouble with aren’t in my book and some are just confusing.
1.Which principle of natural selection is stated incorrectly
A. Individuals in a population show variations
B. Variations are not inherited from parents
C. Organisms have more offspring than can survive on available resources
D. Variations that increase reproductive success will be more common in the next generation
2. The fact that at least one species of resistant bacteria has developed for almost every antibiotic is evidence for which condition?
A. The bacteria have adapted and could be evolving into a different species
B. The bacteria could have learned to mimic other species
C. There is no variation in the bacteria population
D. The antibiotics are being made differently
3. Under what conditions might populations of a short type of sunflower be identified as a new species?
A. They are able to breed with sunflowers from the original population
B. They are unable to breed with the sunflowers of the original population
C. They appear as a new color
D. They produce twice as many blooms as the original sunflower population
4. In order for evolution to occur, what must happen in a population?
A. genetic drift
B. geographic isolation
C. natural selection
D. reproductive isolation
5. What is operating when unrelated species living in different parts of the world, but with similar niches, evolve similar traits?
A. convergent evolution
B. genetic drift
C. divergent evolution
D. parallelism
6. The Hardy-Weinberg equation is used to determine the frequency of which alleles in a population?
A. recessive alleles
B. hybrid alleles
C. dominant alleles
D. masked alleles
Would appreciate if someone could help answer as soon as possible…if you can answer only one question then at least that counts for something!

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Simple Multi-choice Question About Natural Selection Vs Evolution?


I have an exam tomorrow, and i’m reviewing practice exams. Here are the questions I am stuck on:
Evolution vs Natural Selection:
a) creates higher forms
b) is goal-directed
c) is non-directed
d) leads to increased structural complexity
Which of the following is not an example of niche construction:
a) human skin adapting to UV light
b) humans domesticating animals
c) humans adopting agriculture in west africa
d) earthworms modifying soil
What is science?
a) a belief system
b) a system of expert validation
c) a body of truth
d) a methodology

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Question For Evolution?


How do ‘living fossils’ remain unchanged over supposed hundreds of millions of years?

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What Factors Control The Frequency Of Selectively Neutral Alleles?


I’m doing a biology lab and am struggling with the subject of selectively neutral alleles.
Two questions I need help with:
What factors control the frequency of selectively neutral alleles?
Could evolution occur if all alleles were selectively neutral? Explain why or why not.

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