Question 12012BiologyWAEC
Squirrels easily kill some trees because
A
they inject poisonous substances into the trees
B
most trees are susceptible to squirrel bites
C
they feed voraciously on the roots
D
they gnaw the bark and destroy the phloem
Step-by-Step Explanation
Squirrels gnaw the bark of trees, which is crucial for the transport of nutrients and water. This damage disrupts the flow of phloem, the tissue responsible for transporting sugars produced by photosynthesis. As a result, the tree's health is compromised, leading to its decline or death.