Biology, 31.08.2019 07:50 hateschool5207
Which of the following discoveries is most crucial to explaining why all organisms share the same genetic code?
a vesicles containing the same organelles
b microspheres' similarities to modern meteorites
c rna's ability to self-catalyze
d dna's ability to absorb carbon molecules
Answers: 2
Biology, 22.06.2019 11:00
What happens as electrons move along the chain of molecules known as the electron transport chain? they gain energy, which causes atp molecules to lose phosphate groups. they gain energy, which causes h *ions to join with oxygen to produce water. they lose energy, which is then used by the cell to make atp. they lose energy, which is then used to break down atp.
Answers: 3
Biology, 22.06.2019 13:00
Astudy by solloch and et. al., in 2017, gives the map above which shows the frequency of alleles with a ccr5-delta32 mutations over 87 different countries. this mutation deletes the presence of a co-receptor (ccr5) on the outside of human t-cells (lymphocytes). some viruses, such as the one responsible for the black death and human immunodeficiency virus (hiv), require this receptor for attachment to host cells during the infection process. the black death was an epidemic that passed over northern europe during the 14th century killing nearly 60% of europeans. according to this information, which explanation best explains why northern europeans show a greater immunity for hiv than some other parts of the world?
Answers: 1
Biology, 22.06.2019 17:20
If you were given a map of the sensory cortex in the postcentral gyrus of the cerebrum, do you think the map would have more “space” devoted to the regions of the body that have the highest density of sensory receptors, or the regions of the body that have the lowest density of sensory receptors? explain.
Answers: 2
Which of the following discoveries is most crucial to explaining why all organisms share the same ge...
Arts, 04.03.2021 21:20
Mathematics, 04.03.2021 21:20
Mathematics, 04.03.2021 21:20
Mathematics, 04.03.2021 21:20
Mathematics, 04.03.2021 21:20
Mathematics, 04.03.2021 21:20
Mathematics, 04.03.2021 21:20
Mathematics, 04.03.2021 21:20
Mathematics, 04.03.2021 21:20
Health, 04.03.2021 21:20
Chemistry, 04.03.2021 21:20