Which position represents spring in the northern hemisphere?

a)

b)

c)

d)

Amistake occurs during mitosis of a muscle stem cell.how might this affect muscle tissue

In terms of alternation of generations, the internal parts of the pollen grains of seed-producing plants are most similar to a ) moss sporophyteb) moss gametophyte bearing both male and female gametangiac) fern sporophyted) fern gametophyte bearing only antheridia

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