Examine the image of the relatedness of vertebrates represented in this phylogenetic tree. Select all the statements that are supported by this tree.
A)
Gray whales are the common ancestor of the Blue and Humpback whales.
B)
Blue and humpback whales diverged more recently than either did from
the gray whale
The Bryde's whale shares a more recent common ancestor with the Sei
whale than with the Fin whale.
D
The blue and the Bryde's whale have more traits in common with each
other than with any other two species,
E
Southern minke whales and Northern minke whales have more traits in
common with each other than with any other species

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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lunar landing mission. apollo 11 was the first manned mission to land on the moon. the first steps by humans on another planetary body were taken by neil armstrong and buzz aldrin on july 20, 1969. the astronauts also returned to earth the first samples from another planetary body.

explanation:

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