Describe the defense mechanisms evolved by plants to reduce predation by herbivores.

There are two types of defense mechanism of plants against herbivorous

1-Mechanical defense

2-Chemical defense  

Explanation:

Mechanical defense is a first line defense in which plant makes barriers which is made up of wax cutical and bark and they form spines on leaves, thorns on branches which can helps in resistance and physical damage to animals.

Chemical Defense is a type in which plant produces some metabolites, toxins and chemicals which is very toxic to animals and helps in defense example alkaloids.

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.

it's d - life cycles - apex