Question
Biology Question on energy flow through ecosystems
An obligate parasite is one which:
A
always requires a living host
B
is usually a saprophyte but can become a parasite
C
always requires dead organic matter to survive
D
is usually a parasite but can become a Saprophyte
Answer
always requires a living host
Explanation
Solution
An obligate parasite is one which always requires a living host and cannot alive without host e.g., All viruses, Puccinia.