8. Which of the following is the simplest of the invertebrate groups?
A cnidarian B. flatworms C. roundworms
D sponges
9. Which among these is an example of natural ecosystem?
A. dam
B) grassland C. subdivision
D. wheat field
10. Which of the following belongs to abiotic components of ecosystem?
C. fungi
B. bacteria
D. mud
A. algae
Share
8. d
9.b
10.d
Explanation:
#Carry on learning)
Answer:
number b po ang sagot