Biology, 18.02.2020 17:51 bamagirl3871
There is still some controversy among biologists about whether Neanderthals should be placed within the samespecies as modern humans, or into a separate species of their own. Most DNA sequence data analyzed so farindicate that there was probably little or no gene flow between Neanderthals and Homo sapiens. Which speciesconcept is most applicable in this example?A) phylogeneticB) ecologicalC) morphologicalD) biological
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Biology, 21.06.2019 19:40
The many volcanoes located along the edge of the pacific ocean make up the ring of fire. how does subduction play a role in the volcanic activity in the ring of fire?
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Biology, 22.06.2019 07:50
One function of the poly-a tail on eukaryotic mrna sequences is to the mrna be transported from the nucleus to the cytoplasm. prokaryotic mrna also has a poly-a tail. choose the best explanation of the prokaryotic poly-a tail. a. prokaryotic poly-a tails are composed of a different molecular structure compared with eukaryotic poly-a tails. b. prokaryotic poly-a tails have the same functions as eukaryotic poly-a tails, because this process is highly conserved throughout different species. c. prokaryotic poly-a tails aren't important, because prokaryotes don't have nuclei. d. prokaryotic poly-a tails have other functions,because prokaryotes don't have nuclei.
Answers: 3
Biology, 22.06.2019 09:00
Which of the following statements about protists are true? a.they are typically found in moist environments. b.they are all unicellular. c.they have a nucleus. d.they are all multicellular.
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Biology, 22.06.2019 11:00
2. which of the following statements does not accurately describe stem cells? a. embryonic stem cells make up the inner cell mass of a blastocyst. b. with more research, stem cells may be used to repair or replace damaged cells. c. the use of stem cells is without any objections since it can be used in therapies to humans. d. adult stem cells are multipotent and can differentiate into many types of cells.
Answers: 1
There is still some controversy among biologists about whether Neanderthals should be placed within...
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