Question

Explain how the nettle is adapted for defence and protection

Answer 1

In biology, adaptation has three related meanings. The definition that relates most to this question is given below:

Adaptation is the dynamic evolutionary process that fits organisms to their environment, enhancing their evolutionary fitness.

A Nettle plant also known as common nettle, stinging nettle nettle leaf, or just a nettle or stinger, is a herbaceous perennial flowering plant in the family Urticaceae with the ability to sting.

Step-by-step explanation:

One of the biological traits that the nettle has is its ability to produce inflammatory effect (that is a burning stinging sensation on the skin known as "contact urticaria"). This unpleasant effect is achieved by impaling the skin of the animal via spicules. The spicules cause mechanical irritation.

The stinging effect is also achieved by the introduction of biochemical irritants such as histamine, serotonin and choline among other chemicals into the skin.

This sort of defence or protection mechanisam keeps animals away from the nettle.

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Answer 2

Stinging weeds have created stinging cells as an adjustment to hinder herbivores from eating them. The plants contain long, thin, empty hairs that cover most of the stem and the underside of the clears out. The dock abandons themselves contain oxalic corrosive, which deflects herbivores from eating them.