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What determines which variations are selected for or against?
The ability of those variations to survive and be reproductively successful against other variations in the immediate selective environment. The coin evolution pays in is reproductive success.
True or false Darwin observed variations among individuals within a population but he did not realize that these variations were caused by selective breeding?
True, Darwin did realize that the observed variations among individuals within a population were caused by selective breeding. Although he did do a lot of great stuff. He wrote a book called The Origin of Species. You should check it out if you would like to find out the stuff that he did and what he found out about evolution. Either that or rent a book from a library about evolution.
Natural selection will never favor those members of a population that have an extreme variation of a trait?
Natural selection can favor extreme variations of traits if they provide a survival advantage. For example, in a changing environment, individuals with extreme traits may be better suited to survive and reproduce. However, extreme traits can also come with disadvantages that may make individuals less likely to survive and reproduce.
What is most likely to be the cause of discontinuous variation - genes or the environment?
Discontinuous variation is primarily caused by genes, as it results from distinct genetic factors that influence a trait. While the environment can also play a role in shaping variations, it typically leads to continuous variations rather than the distinct, non-overlapping categories seen in discontinuous variation.
Is a species that lacks DNA repair mechanisms likely to have more or fewer variations between individuals than a species that possesses repair mechanisms?
A species that lacks DNA repair mechanisms is likely to have more variations between individuals than a species that possesses repair mechanisms. This is because without DNA repair mechanisms, mutations are more likely to accumulate and be passed on to offspring, leading to greater genetic diversity. On the other hand, species with repair mechanisms can correct mistakes in DNA replication, reducing the overall variation between individuals.
The process by which individuals that have favorable variations and are better adapted to their environment survive and reproduce more successfully than less well adapted individuals do?
The process by which individuals that have favorable variations and are better adapted to their environment survive and reproduce more successfully than less well adapted individuals is called natural selection. This is part of Darwin's theory.
Can you explain the role of heritable variations in Darwin's theory of natural selection?
Heritable variations play a crucial role in Darwin's theory of natural selection as they provide the raw material for evolution to act upon. These variations are inherited from parents to offspring and can affect an individual's ability to survive and reproduce in a given environment. Natural selection then acts on these variations, with individuals better adapted to their environment being more likely to survive and pass on their favorable traits to the next generation.
Why is a genetically diverse population the more likely to survive a change to the environment?
they are more likely to have individuals with an adaption
What determines which variations are selected for or against?
The ability of those variations to survive and be reproductively successful against other variations in the immediate selective environment. The coin evolution pays in is reproductive success.
What are four steps of nautral selcetion?
The four steps of natural selection are variation, competition, survival, and reproduction. First, individuals within a population exhibit variations in traits. Second, these variations lead to competition for resources, where some individuals are better suited to survive in their environment. Third, those with advantageous traits are more likely to survive and reproduce, passing these traits to the next generation. Over time, this process results in the population evolving to better adapt to its environment.
Explain why variations are needed for natural selection to occur?
Certain variations are more likely to be passed on to future generations than others, because those variations help their possessors reproduce more successfully. Other variations are less likely to be passed on because they do not help, or even hinder their possessors in successful reproduction. We say that the helpful variations are selected by the very nature of things. Without variation, whether an organism reproduces successfully or not is just a matter of blind chance. There is no natural tendency for certain individuals to be more successful at reproducing than others, because there are no differences between individuals.
Which individuals are most likely to survive and reproduce in a population?
Those who are more adapt to there environment.
According to the theory of natural selection a species that lacks the variations necessary to adapt to a changing environment will most likely do what?
Go extinct.
Natural selection is based on Darwin and observation that individuals most likely to survive and reproduce are those .?
Are those individuals best adapted to their immediate environment.
Natural selection is based on Darwin’s observation that individuals most likely to survive and reproduce are those?
Are those individuals best adapted to their immediate environment.
What is the process which individuals that are better adapted to their environment are more likely to survive and reproduce is called?
natural selection
What products have the symbol harmful on them?
Any product likely to pose a hazard to individuals, animals or the environment if used incorrectly.
