Which is one function of steroids?
waterproofing leaves and feathers
insulating and protecting bones and organs
serving as chemical messengers
providing energy storage

The correct answer is option - serving as chemical messengers.

Explanation:

Steroids are the lipids as they insoluble and hydrophobic in nature however they have four rings fused to form their structure. The most common steroid is in the body is cholesterol and a precursor of different steroid hormones such as testosterone, estrogen, aldosterone, and others. Vitamin D and bile salts are also steroids.

Steroid hormones act as the chemical messenger to regulate metabolism, water and salt balance, immune cells, and sexual characteristics of the individuals.

Thus, the correct answer is option - serving as chemical messengers.

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