Consider the evolution of chordates, organisms with a hollow nerve chord. choose the organism most closely related to humans.
a)
lamprey
b)
sea star
c)
lancelets
d)
brittle star

The answer is A

answer by yourhope:

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in which structure in the nucleus are ribosomes made?

b) nucleolus!

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ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called