Biology

Biology, 19.07.2019 01:30, heavenwagner

True or false by selecting for or against certain genes (or traits) l, natural forces shape evolution at the population level for a species

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Biology, 15.07.2019 18:30, reagybear

Natural selection in a population leads to evolution when: a. every new generation of the population is a new species. b. an offspring does not have all the same traits as its parents. c. an organism cannot reproduce because of a mutation. d. allele frequencies of some traits change in the population.

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Biology, 17.07.2019 19:00, pringlexavier798

Match the following terms and definitions. 1. genetic change in a population or species over many generations 2. male and female reproductive cells (egg and sperm cells) 3. mechanism of evolution that suggests traits can be shifted between populations by outbreeding or migration 4. all of the genes present in a specific population 5. mechanism of evolution that suggests changes in the gene pool of a population are due to chance 6. mechanism of evolution proposed by darwin; suggests traits suitable for an environment survive while those less favorable do not 7. the expression of a genetic trait; what the trait looks like natural selection genetic drift gene flow gene pool phenotype gamete evolution

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Biology, 04.08.2019 09:50, nguyenhoangthienkim0

Lots of the word natural in the term natural selection indicates that this process a. is very gradual b. involves choosing c. occurs without human involvement d. allows only some organisms to pass on their genes which of the following best describes the process of evolution by natural selection? a. a rapid change of the traits of a species over time b. a gradual change of the traits of a species over time c. a rapid change of the traits of an organism over time d. a gradual change of the traits of an organism over time what effect will taking a dose of antibiotics that is too small have on the bacteria you are trying to destroy? a. all of the bacteria will pass on their genes b. none of the bacteria will pass on their genes c. the weakest bacteria will pass on their genes d. the strongest bacteria will pass on their genes humans whose ancestors lived in which of the following regions would be likely to be able to digest the lactose in milk? a. african regions where cows were herded b. european regions where horses were ridden c. asian regions where chickens were domesticated d. south american regions where potatoes were farmed what is one similarity between natural selection and artificial selection? a. it is not possible to have major changes in traits. b. environmental factors do most of the "selecting." c. offspring are extremely different from their parents. d. not all organisms are able to pass on their genes to offspring.

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Biology, 22.08.2019 20:50, hmatt5643

Select all that apply. micro-evolution -refers to evolution at or below the species level - includes evolution at the population and community level - analyzes the history of life over time - refers to evolution above the species level - is based on direct observation

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