PLEASE HELP

Biology

2 answers:

Marrrta [24]3 years ago

6 0

Answer:

I'm pretty sure that the answer is d :)

Explanation:

777dan777 [17]3 years ago

6 0

Answer:

yeah

Explanation:

Mechanical Defenses

The first line of defense in plants is an intact and impenetrable barrier composed of bark and a waxy cuticle. Both protect plants against herbivores. Other adaptations against herbivores include hard shells, thorns (modified branches), and spines (modified leaves). They discourage animals by causing physical damage or by inducing rashes and allergic reactions. Some Acacia tree species have developed mutualistic relationships with ant colonies: they offer the ants shelter in their hollow thorns in exchange for the ants’ defense of the tree’s leaves.

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