Biology, 03.12.2019 00:31 pearpeaerrr1993
Abalanced polymorphism (maintenance of multiple genotypes) exists through disruptive selection in seedcracker finches from cameroon in which small- and large-billed birds specialize in cracking soft and hard seeds, respectively. if long-term climatic change resulted in all seeds becoming hard, which type of selection would then begin to operate on bill size in the finch population?
a. directional selection
b. disruptive selection would continue to operate
c. stablilizing selection
d. no selection will operate on bill size following the climate change
Answers: 1
Biology, 22.06.2019 14:30
Which of these is not an example of molecular homology? 1. use of dna and rna as genetic material 2.use of glycolysis as the first step in cellular respiration in both plants and animals 3. the lack of an igf-1 gene in prokaryotes 4. the use of aldolase b to break down fructose in bacteria, plants and animals
Answers: 3
Biology, 22.06.2019 16:00
Produce proteins by following coded instructions that come from the nucleus of the cell.
Answers: 3
Biology, 22.06.2019 18:00
The table below shows the elements that mainly comprise each of the four layers of earth: elements in layers layer main elements crust oxygen, silicon mantle iron, magnesium outer core iron, nickel inner core iron which of these elements make up the layer that is 0.2 to 1.1 percent of earth's total diameter?
Answers: 2
Biology, 22.06.2019 21:30
Use the drop-down menus to match each part of the scenario to the correct scientific practice. akira records the speed of a reaction without a catalyst and then with a catalyst. akira creates a reaction without a catalyst and repeats the reaction with a catalyst. akira turns in a written lab report to his science teacher. akira wonders, "will adding a catalyst speed up this chemical reaction? " akira writes in his notes that adding a catalyst sped up the chemical reaction because the catalyst lowers the activation energy needed to get the reaction started.
Answers: 2
Abalanced polymorphism (maintenance of multiple genotypes) exists through disruptive selection in se...
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