Evolution

exponential. let's say you have a bacterium that will divide every hour under optimal conditions. After an hour you have 2, two hours later, 4 , and after n hours you have 2 to the nth power. After 10 hours you have 1024, after 20 hours, over a million, at 30 hours you have over a billion (a milliard if you're a brit) and at 40 hours you have over a trillion (billion if you're a brit). You would also have to get rid of waste, since they often poison critters.

The study of fossils represent the evolution of species by the time period between when they became fossils and what the ancestory line is

True. That is the definition of evolution.

it's between A. amino acids or B. monosaccharides C.fatty acids or D.phospholipids

in crossing over the gens present on chromosomes forms linkage so the character are exchange & thus it lead to recombination of genes that affect genetic diversity

The theory predicts that evolution will happen and in certain ways. The observed evolution makes this prediction correct. It also defines evolution as happening, and as such is perfect evidence in support of it.

Darwin used the phrase "descent with modification" (he didn't use the term "evolution")

Without variation natural selection would have nothing to select from that would confer survivability and reproductive success. on the organisms being selected against the organisms conspecifics and the immediate environment.

Mutation and sexual recombination provide the main sources of this variation that is needed to make selection work. Mutation is the variation presented that causes the real adaptive change that can lead to speciation.

An example of

adaptive radiation is Darwin finches, found in Galapagos Island. A large variety of finches is present in Galapagos Island that arose from a single species, which reached

this land accidentally. As a result, many new species have evolved, diverged, and

adapted to occupy new habitats. These finches have developed different eating habits

and different types of beaks to suit their feeding habits.

Over time, natural selection results in changes in the inherited characteristics of a population. These changes increase a species' fitness in its environment. Natural selection cannot be seen directly; it can only be observed as changes in a population over many successive generations.

No, we are not descended from chimps, and no one believes that we are.

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It's an interesting question, since all life on earth comes from the first living organisms on the planet. Therefore, you could say that we are related to chimps, as we probably have a common ancestor, however we don't "descend" from them.

If you are interested in evolution I recommend reading Darwin's "Origin of species".

Unless life evolved multiple times on Earth all species share a common ancestor with each other. The list is for all practical purposes limitless.

Humans and wolves

Guinee Pigs and Wales

Cock Roaches and Mice

and so on.....

According to science, natural selection helps suppress harmful changes in species by slowly making adaptations. These adaptations are necessary for the ongoing of the species. Without the changes, the species could become extinct.

Perhaps the most significant evolutionary trend among the metazoan invertebrate phyla is that of cephalization. This term refers to the development of a head, containing a brain. Another process called segmentation allowed animals to develop distinct body parts, such as legs, wings and feelers.

Assuming you mean evolution. Virtually every living species on this planet has evolved over time and the fossil record demonstrates this to an amazing degree.

God created it along with everything else in the universe.

The scientific would be that they developed from single-celled organisms; some scientists even believe that some bacteria may have arrived from space. No one really knows for sure, though simple life has been created in the laboratory by the introduction of electricity (such as a lightning bolt might provide) to a chemical "stew" similar to what is presumed to have existed early in this planet's history.

Sound science does not necessarily preclude the existence of a "Creator", but we can be absolutely sure that Genesis, and other creation stories, are nothing more than attempts by early humans to explain existence, and are not factual blow-by-blow accounts.

They both decrease genetic variation .

When all the organisms are exact genetic copies, you don't have diversity. Additionally they would all appear as identical twins. If you are talking about a food crop if a bacterial, fungal disease strikes, they may all succumb. We would be left without that food. When there is diversity, some of the organisms are resistant. The resistant organisms survive and pass the resistance on to future generations. The resistant organisms also serve as a buffer. The resistant organism doesn't come down with and, therefore, spread the condition.

Mutations lead to all sorts of variation in organisms and natural selection selects the best able to adapt to the immediate environment by becoming reproductively successful. Thus alleles change over time in populations of organisms and evolution occurs. One; anagenesis. Where a species just evolves so much that it becomes another species. ( rare and controversial ) Cladogenesis. Where species are split asunder by physical or behavioral reasons and split into two different species.

Modern scientists now use genetics to help explain the theory of natural selections.

importance of embryology is shows how different cells are organized to form embryo and how each cell and tissues shows modification according to their functional demands.

Knowledge of embryology is gaining importance in diagnosis of certain diseases like cancers.

Geographic isolation causes the environments to separate. The members of each side will be separated and gradually become more and more distinct as time goes. Eventually, when they are unable to interbreed, that is evidence of speciation.