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Heritable traits that confer some survival or reproductive advantage, or natural selection will cull traits that confer the opposite to survival and reproductive advantage.
So, the individual organisms, or his genes, are selected and these alleles increase in frequency in populations and evolution takes place.
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Why is crossing-over one of the factors that makes natural selection possible?
Crossing-over increases the genetic variation within a population, which is required for natural selection to act upon.
Which enzyme is found in the saliva and which food type does it act on?
on the amylase solution
Substance that enzyme act upon?
They are known as reactants or substrates.
What type of connective tissue provides levers to act on?
Bone (Osseous Tissue)
Explain how the structure and function of DNA enable species to change over time through natural selection.?
The structure of DNA is stable but it can undergo mutation once in a while to provide the raw materials for natural selection to act upon. lol from Kaplan huh?
Can natural selection act on a population with no variation traits?
The trait is the same for all organisms.
How does tetracycline act as an agent for natural selction?
as the bacteria it was exposed to, eventually one strain mutated and this lead to a resistance to the antibiotic, and therefore the bacteria with the mutation was able to reproduce, where as the other bacteria would have been killed off by the antibiotic. Thus natural selection is achieved, yipee!(not for us)
Natural selection can only act on traits?
Yes, traits that are phenotypical in nature and confer some survival and reproductive advantage, then the alleles that gave rise to these traits become more frequent in the populations gene pool and evolution takes place. So, natural selection is acting on genes in the individuals and population are evolving from this process.
Is inheritance a requirement for natural selection?
Yes it does. Without variance in the organisms genome, that gives variance to the phenotype, there would be nothing for natural selection to select from.
List the three conditions that are necessary and sufficient for natural selection to act on a?
A beneficial mutation leading to variability in a population and the heritability of those beneficial traits.
What do variation and competition have to do with natural selection?
Variation and competition are the basis of natural selection.When a population of organisms has variety (big/small, fast/slower, etc), and there is competition, then some of those traits will assist in winning the competition, and some will not, which will tend to mean the difference between an organism surviving versus not surviving, which in a large population will mean passing the genes for those advantageous traits on, which then means that those traits have been 'selected' for by the natural act of competition, thus 'natural selection'.
How does a monkey act and what are the character traits of a monkey?
how does a snow monkey act
if i'm a gemini but I act nothing like a gemini or have any of their personality traits, but a rising in cancer and act just like them and have all their personality traits, then what am I?
you are a cancer then
What is the Physical appearance and and personality traits of characters in the book 'Freak the Mighty'?
Physical traits is what they look like + Personality traits is what they act like
What does behavioral traits for a bee mean?
they act strangely
What do characters need before they can act?
Traits and context
What is a natural pigment that can act as an indicator?
red cabbage is the natural pigment that can act as an indicator.
