He took swabs of one pea plant and put it on others to help them reproduce.
Answer:
There is 46 pairs of chromosomes.
All three domains include unicellular organisms, archaea, bacteria, and eukarya.
d. Sea Cucumber
Sea cucumbers are filter feeder. Sea cucumbers often find places that have strong currents to find food.
Answer:
a series of pools built like steps to enable fish to bypass a dam or waterfall.
Explanation:
A fish ladder, also known as a fishway, fish pass or fish steps, is a structure on or around artificial and natural barriers to facilitate diadromous fishes' natural migration.