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What is the correct term for variation in characteristics within populations of the same species A variation in characteristics within populations of the same species is called?
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What describes why the two minnow populations evolved into separate species?
Different selective pressures were acting upon the two populations, leading to an increase in genetic variation and the formation of two new species. study island
In all populations of living things there is variation among the individuals within and among species On islands however there is often less variation in life forms than there is on the mainl?
Islands have an isolated gene pool.
What is interspecific and intraspecific cooperation?
Interspecific cooperation refers to help or assistance of individuals belonging to different species (a case of this is mutualism), whereas intraspecific cooperation is observed between individuals within the same species
How do organisms achieve variation?
The differences shown by the individuals of one kind of organisms are called variations. Variations are due to hereditary and non-hereditary characteristics. Characteristics, which are passed from parents to off spring, are called hereditary characteristics. In general the term variation means the difference in characteristics of organisms belonging to the same species in a natural population. Two types of variation, i.e. continuous and discontinuous, occur in any large population. In continuous variation, there are small differences among individuals of the same species and many intermediate forms are seen. So there is a complete gradation of many characteristics of organisms from one extreme to the other in a population. E.g. height in human being. Characteristics showing continuous variation are produced due to combined effects of many genes and environmental factors.
One species evolve into two species?
A common speciation event is called allopactric speciation. This is the geographic separation of a single species into two populations. Naturally, one could expect statistically different genetic variation to arise in these two populations and the environments may be different also. In any event, these two populations, after time, would be headed down different evolutionary roads.
What is a result of the limited genetic variation in the current cheetah populations compared to earlier cheetah populations with more variation?
d. current populations of cheetahs are able to interbreed with other species, increasing genetic variation.
What is a result of the limited genetic variation in the current cheetah population compared to earlier cheetah populations with more variation?
d. current populations of cheetahs are able to interbreed with other species, increasing genetic variation.
What causes variation within species?
Variation within species can be caused by genetic mutations, environmental factors, and interactions between genes and the environment. Genetic mutations are changes in the DNA sequence that can create new traits. Environmental factors, such as diet and climate, can also influence variation by selecting for certain traits over others.
Explain why there is more variation between a species than within a species?
Within a species, the animals breed together so that the similar characteristics are passed from parents to their offspring. This is why there is less variation within a species than between a species.
What is clining?
In biological terms it is the change in certain characteristics of populations of organisms of the same species
Describes why the two minnow populations evolved into separate species?
Different selective pressures were acting upon the two populations, leading to an increase in genetic variation and the formation of two new species. study island
What describes why the two minnow populations evolved into separate species?
Different selective pressures were acting upon the two populations, leading to an increase in genetic variation and the formation of two new species. study island
Which best describes why the two minnow populations evolved into separate species?
Different selective pressures were acting upon the two populations, leading to an increase in genetic variation and the formation of two new species.(study island)
Discuss how 1 variation within a species 2 geographically isolated populations and 3 fossil organisms make it difficult to clearly define a species?
what is this, your homework? yes and its hard.
In all populations of living things there is variation among the individuals within and among species On islands however there is often less variation in life forms than there is on the mainl?
Islands have an isolated gene pool.
What is interspecific and intraspecific cooperation?
Interspecific cooperation refers to help or assistance of individuals belonging to different species (a case of this is mutualism), whereas intraspecific cooperation is observed between individuals within the same species
Does variation within the same species exist?
Of course, variation exists within individuals of the same species. This is because there are a small minority of genes which have multiple alleles in most species. In cases where a subset of the population is isolated from the rest of the population, a subspecies may develop which has particular unique characteristics but can still interbreed with the rest of the species.
