Biology, 19.02.2021 06:10, watsonjessalynn
Select the correct answer from each drop-down menu.
Wayne is writing an article on how life may have began near hydrothermal vents. Help him complete the sentences.
During early ages, the alkaline hot liquids from the vent met the acidic cold ocean water. The acidic ocean water produced a natural (protons, electrons, neurons)
gradient across mineral wall in rocks that are rich in catalytic minerals. This difference in conditions converted (potassium, carbon dioxiode, sulfur)
and hydrogen into organic carbon-containing molecules. These can react with each other to form organic molecules, such as nucleotides and amino acids.
Answers: 2
Biology, 22.06.2019 01:30, nadiareese
Select the correct answer. which term do biologists use to describe the average number of individuals of a species per unit area? a. carrying capacity b. population density c. minimal viable population d. survivability curve
Answers: 1
Biology, 22.06.2019 02:00, badpotterchris
How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.
Answers: 1
Biology, 22.06.2019 10:30, jagslovegirl
Natural selection changes allele frequencies because some survive and reproduce more successfully than others.
Answers: 1
Select the correct answer from each drop-down menu.
Wayne is writing an article on how life may hav...
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