Biology, 18.03.2020 00:23 TombRaider167
During the Cenozoic Era the global climate has turned colder, with the ice caps returning to North America, Eurasia, and Antarctica.
All continents extensively developed rocks, particularly on lowland plains such as the Gulf and Atlantic coastal plains of North
America. This time in Earth's history marks the disappearance of the dinosaurs.
What is true about life on Earth at this time?
flowering plants appeared
non-vertebrates dominated
fish emerged during this time
small animals diversify quickly
Answers: 1
Biology, 21.06.2019 18:30, smelcher3900
The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.
Answers: 3
Biology, 22.06.2019 02:00, naimareiad
The finches on the galapagos island were similar in form except for variations of their beaks. darwin observed that these variations were useful for: attracting a mate defending territory building nests gathering food
Answers: 3
Biology, 22.06.2019 02:00, sativataurus
The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.
Answers: 3
During the Cenozoic Era the global climate has turned colder, with the ice caps returning to North A...
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