Answer:
I think the first one is b and i think the second one is c
Explanation:
Adaptational failure.
Definition:
Adaptational failure refers to the Failure to master or progress in accomplishing developmental milestones.
Organelles → cells → tissue → organs → organ systems → organisms
Trade had a great impact on Sumerian society. Traders traveled to faraway places and exchanged grain for gold, silver, copper, lumber, and precious stones.