A) About 25% of all insects are phytophagous
B) Predators keep prey population under control
C) Biological control methods are based on the ability of predators to regulate prey population
D) Spines are the most common morphological means of defense of plants
Correct Answer: D
Solution :
[d] Spines are the most common morphological means of defense of plants. Thorns are most common morphological means of defense of plants e.g. Acacia and cactus
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