FILL-IN: Lamarck proposed that giraffe parents lengthened th…
FILL-IN: Lamarck proposed that giraffe parents lengthened their necks by stretching to reach leaves, then passed their lengthened necks to their offspring. He called his hypothesis “the inheritance of _____________”. Spell carefully, and give the complete term.
Read DetailsIn the phylogeny below, note the following variations: -Body…
In the phylogeny below, note the following variations: -Body size (large or small) -Number of arms (3, 4, or 5 arms) -Body coloration (spotted, striped, or solid) Which trait(s) evolved at position #1? Select the one best answer.
Read DetailsThe echidna is an egg-laying mammal whose body is covered in…
The echidna is an egg-laying mammal whose body is covered in quills for protection from predators. The porcupine’s body also is covered in quills for protection, although porcupines are not closely related to echidnas. What is the best explanation for presence of quills in these two species?
Read DetailsHARDY-WEINBERG CALCULATIONS: In a population of gorillas, th…
HARDY-WEINBERG CALCULATIONS: In a population of gorillas, there are two alleles at a particular locus (G and g), and the frequency of the dominant G allele is 0.1. What is the expected frequency of heterozygotes under the Hardy-Weinberg equilibrium model?
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