On decomposition, which substance in decaying plants is the major source of carbon for carbon dioxide production by the micro-organisms involved?
A cellulose
B glucose
C starch
D sucrose

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.

To maintain asepsis when administering an injection, all parts of the syringe can be handled except the:

Which are characteristics of flukes? check all that apply. a they are free living. b they are a type of flatworm. c they reproduce sexually. d they have eyespots. e they are segmented.