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Biology, 20.03.2021 09:50 alayciaruffin076

PLEASE I BEG YOU TO HELP FOR 50 POINTS ACROSS
2 random mating, large population, no emmigration or immigration, no mutation, no natural selection... no evolution
5 type of evolution in which organism groups slowly become more different from each other over time
6 another term for characteristics which make a population better suited to an environment
7 type of rock which would clearly show he imprint of a leaf 9 person who proposed that human growth was geometric vs. the idea that food supply grew at an arithmetic rate, resulting in the human population exceeding the food production
11 Africans have immunity to this if they're heterozygous for sickle cell
14 type of evolution where two populations begin to resemble each other because they occupy the same type of environment
16 a species which has multiple sets of chromosomes
18 number of half-lives which must pass if a fossil displays only 1/16 the carbon-14 that it first had
19 physical adaptation in which an organism looks similar to environmental objects 21 era during which humans evolved
23 scientists who worked with the simple compounds that would have been around at the dawn of life
25 what random bacteria or insects contain in their DNA which makes them immune to antibiotics or insecticides
26 slow, random change in allele frequencies of phenotypes in a population (2 words)
27 considered to be the earliest known organisms on earth
DOWN
1 hydrogen gas, methane, ammonia, water vapor describe a(n) _ atmosphere 3 theory which explains rise of eukaryotes, especially the presence of mitochondria and chloroplasts
4 When observing horse evolution, it is most likely that its evolution was a _ event
8 term which describes relationship of "arm bones" of man, lizard, bird, bat 10 when the average expression of a range of expressions is favored
12 type of fossil which may contain ancient DNA
13 correct magnitude of earth's age -- about 4.6 _ yrs. old
15 type of natural selection in which one extreme of an array of expressions is favored
16 era which was about 4 billion years long
17 word which describes "rushed" evolution as opposed to a gradual change from generation to generation
20 type of genes shared by many organisms, though a common ancestor may be 700 million years ago
22 a reduced, functionless structure present in current organisms believed to have had full function in ancestors of that population
24 directional term describing where in the strata you would find a certain fossil that is older than another


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2 random mating, large population, no emmigration

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