Answer:
If bird song promotes an individual's ability to attract a mate and reproduce, then the song has an <u> function</u>
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Explanation:
Within a community, certain novel traits are fixed because they impart beneficial adaptations on an individual in their ecosystem (like mate attraction). Such modifications enable such individuals to live longer than their peers, and breed over time to produce more offspring who also exhibit these traits.
Natural selection takes place and is determined by the fitness of an individual
, it contributes to evolutionary change as individuals with certain traits reproduce, the traits become fixed and prevalent within the population.
Answer:
loss of genetic diversity
Explanation:
Artificial selection, also known as selective breeding, refers to the identification by humans of desirable phenotypic features (traits) in plants and animals and the subsequent breeding procedures to enhance and perpetuate these traits in offspring. As a consequence of artificial selection, future generations of selectively bred animals/plants will share favorable gene variants (alleles), thereby genetic diversity will decrease in the population. This reduction in the gene pool will affect genetic progress and consequently also breeding programs in the future.
Answer:
A. concentrated is the substance on its own, dilute is the substance mixed with (diluted) water.
B. an acid increases the concentration of H+ ions. A base is a substance that releases hydroxide (OH-) ions (in aqueous solution, donates electrons and accepts protons)
Explanation:
The first prokaryotic cells appeared during the _____.
