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In a sexually reproducing species evolution could occur as a result of?
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What are the two factors that account for diversity of species?
The diversity of sexually reproducing species is a result of the fact that a) gene pools change over time (by selection and genetic drift) and that b) reproductive isolation occurs, leading to the inability of the descendants of formerly interbreeding subpopulations to interbreed (speciation).
When does one species of organisms become two species?
Through evolution. There are two main kinds of evolution which are gradualism and punctuated equilibrium. In gradualism, natural selection slowly removes unfavorable traits for the environment that the species is living in. After many years the different habitats will result in two species. This same theory is true for punctuated equilibrium except that in p.e. there is a sudden burst of change followed by a dormant state of evolution for the species.
How does evolution by natural selection result in adaptibility?
Species or individuals capable of adaptation live to reproduce. The ones incapable of adapting, do not propagate their genes.
When a cell undergoes meiosis what will be the result?
Mitoses does take place in sexually reproducing organisms. There are two types of cells in your body, somatic cells (heart, skin, bones, etc.) and sex cells (eggs and sperm). Somatic cells all use mitosis to make more of themselves. Sex cells use meiosis to make more of themselves. If sex cells used mitosis instead of meiosis they would have too many chromosomes and the baby would have problems (if it survived at all).
Acquired characteristics lead to evolution?
what evolution as a result of acquired characteristics
Which two processes result in variations that commonly influence the evolution of sexual reproducing species?
mutation and genetic recombination.
The great variety of possible gene combinations in a sexually reproducing species is due in part to the?
Recombination, or crossing over, is the process by which homologous chromosomes exchange genetic material during meiosis. This creates gametes with many different combinations of alleles, and is a major source of genetic variation in sexually reproducing species.
Variation in the offspring of sexually reproducing organisms is the direct result of?
b) sorting and recombining of genes
Variation of offspring of sexually reproducing organism is the direct result of?
Half of its genetic material from each parent. =o)
Is the formation of new species as a result of evolution?
speciation
What are the two factors that account for diversity of species?
The diversity of sexually reproducing species is a result of the fact that a) gene pools change over time (by selection and genetic drift) and that b) reproductive isolation occurs, leading to the inability of the descendants of formerly interbreeding subpopulations to interbreed (speciation).
The formation of a new species as a result of evolution by natural selection?
speciation
What is the gradual development of new organisms from preexisting organisms called?
I believe you are referring to evolution, which occurs as a result of natural selection causing species to change into new species over time.
How are autosomal traits relate to Mendel's observations of heredity?
All of the traits that he studied were determined by genes on autosomes. Most traits in sexually reproducing organisms result in autosomal genes
When did the origin of species happen and how?
Evolution, which includes the divergence of lineages and the formation of new species as a result of that, is something that is happening continuously, in all lifeforms.
Why are physical similarities among species not always the result of being related?
because unrelated species can evolve similar traits through convergent evolution.
What are analogous characteristics?
analogous character similarities that are the same, but found in different species, thought to have arisen from convergent evolution
