Sagot :
B. All the frogs in a pond
D. A system is more complex and contains several organs.
Answer:
1) B. All the frogs in the pond
2) D. A system is more complex and contains several organs
Explanation:
1) Population means the number of species living in a certain area
2) An organ system means several organs are connected for a certain function eg. respiratory system
ps. gawa gawa ko lang yung explanation pero nandun na din yung point