Answer: The nucleus
Explanation: It directs the cell's activities in the plant and animal cells.
There are man chemical and physical changes such as geno and pheno.
C; rolls in mud to cool off and deter flies All the other answers refer to structural (physical) adaptations.
D phytoplankton i believe
Answer:
Groundwater rises, adding water to rivers.
Explanation:
Tributaries combine, adding water to rivers.
Ice sheets melt slowly, adding water to rivers.
Rainfall in an area increases, adding water to rivers.