Evolution that involves changes in a species over time to produce adaptations that allow the organism to bette

Question

Evolution that involves changes in a species over time to produce adaptations that allow the organism to better survive its environment is ______________.

Microevolution

Macroevolution

Both A and B

None of the above

Answer 1

The answer is microevolution, the result of small changes that aid adaptation and survival.

Yes evolution is a theory but it is a well founded one, much like the theory of universal gravitation or atomic theory or the hydrologic cycle theory. A theory is not a guess, but it is a scientific principle that models one aspect or another of physical reality and is capable of making predictions that are verifyable. In that sense scientific theorys are sounder than almost anything else you can think of, especially spiritual or astrological crap that never works the same way twice.

Answer 2

More usually Microevolution

Macroevolution involves larger changes such as one species mutating into another, which is obviously also an adaptation to environment but may also involve movement from one environment to another.

Saying that evolution is "just a theory" demonstrates that the person doesn't know what they are talking about. Evolution is a SCIENTIFIC THEORY. A scientific theory is not a speculative idea, which is science is called a hypothesis. A scientific theory is a model or concept which must FIT ALL KNOWN FACTS. If is does not fit all known facts it must be discarded or modified. Evolution has fitted all known facts for nearly 150 years.

Definition of hypothesis:-
1. A tentative explanation for an observation, phenomenon, or scientific problem that can be tested by further investigation.
2. Something taken to be true for the purpose of argument or investigation; an assumption.
3. The antecedent of a conditional statement
Latin, subject for a speech, from Greek hupothesis, proposal, supposition, from hupotithenai, hupothe-, to suppose : hupo-, hypo- + tithenai, to place;
Source: http://www.thefreedictionary.com/hypothesis

People that don't know what a scientific theory is shouldn't be answering in the science section

Answer 3

Microevolution is evolution below the species level. This means the process of evolution is occuring in populations in a species (as alluded to in this question). So change in traits (in your questions, "adaptations") in a species is a matter of microevolution.

Macroevolution on the other hand is evolution above the species level. It refers to "bigger picture" patterns and processes of evolution like the diversification of large groups of organisms (e.g. mammal evolution), the evolution of major innovations (e.g. evolution of flight), and extinction and origination of species and larger groups. This is not one species "mutating" into another species as suggested by another poster.

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Note: Cpt. Bunkrum almost got it right with problems with saying evolution is "just a theory," however there are some things that may convey some misconceptions about evolution.

A scientific hypothesis isn't a "speculative idea". It is a statement that can be falsified through a scientific test. A scientific theory does fit all known facts, but more importantly, it is supported by many lines of evidence from multiple kinds of scientific tests. It has never been falsified.

Answer 4

There is a disturbing trend of scientists, teachers, and students coming under attack for expressing support in the theory of intelligent design, or even just questioning evolution. The freedom of scientists, teachers, and students to question Darwin's theory, or to express alternative scientific hypothesis is coming under increasing attack by people that can only be called Darwinian fundamentalists.”

New Ben Stein Flick, Expelled, Blows the Whistle on the Evolution.
Expelled is a disturbing new documentary that will shock anyone who thinks all scientists are free to follow the evidence wherever it may lead.

http://www.expelledthemovie.com/

Answer 5

Both A and B, which in fact are the same thing in a different scale.

Answer 6

Both a and b

Answer 7

both a and b. micro. is smaller changes than macro.

Answer 8

Evolution is a theory,aka, nonsence !

Answer 9

wow-wee, hope you get better, sorry you are sick!!!