Earth & Biology

As a secondry sexual trait in men , what is the role of moustache and beard in the evolution of men . I mean that what was the need in the evolutionary process that triggered(if it is right word to use) the androgens to form thicker hairs on face for display or any machenism?. And also why not in females

(female's don't produce androgens like testosterone for these kind of secondry sexual characteristics but why )

Edit: while searching i got to know that females also have a little bit amount of testosterone (15-70 ng/dL), and males have much lower amount (som 10-40 pg/mL) of estrogen

I am not well informed in biology or taxonomy, but from a layman's perspective, fungi seems mysterious to me because it is not an animal nor a plant. Why so? Why is it classified as a different type of living being?

Or does the genome contain 20,000-25,000 genes, and one diploid cell contains double of that?

this might be a dumb and/or stupid question, but is everyone capable of orgasming?

i know most if not all male organisms orgasm somehow for the sake of reproduction, but i'm more wondering about the females. female humans can orgasm, despite it not directly aiding reproduction, and i wonder how that translates in other creatures since we're all so interconnected

i'm also wondering, how would you even find that out? would you just look for clitoral organs in the animal, or would you have to watch them in the wild? do all the animals who orgasm KNOW they can? how would you even know that either? lol

also, what about plants? would you even consider the release of pollen an "orgasm"?

also, what animals have the capability to enjoy sexual experiences how humans do? i know lots of creatures mate without necessarily ENJOYING it.. but i do wonder about the ones that do and what function that has in their society and behavior as a whole

this has been on my mind since last night. i'd love to know if any of these questions are answerable

Im so confused. especially around the secondary structure.

heres what I know:

Primary - One polypeptide, the kind of amino acids in chain and how they’re arranged

secondary - two polypeptides and how they interact (I don’t understand the alpha helix and folds in the chain)

tertiary - two polypeptides folding

quaternary - 2+ tertiary structures folding together to make a functioning protein.

I don’t really know how to explain what I don’t know. I think I just don’t understand the difference between 2+3

From the opposite standpoint, I understand wide hips help with childbirth. But the other way around? From this perspective, there is no reason for women to find men’s butts attractive.

Currently taking a break from my biology degree since I needed a break from school. I'm now having a hard time debating if I should even finish it because I've always been told I need a Masters to get a job anywhere. I already have 2 years of experience being a lab tech during my schooling, working over the summers as well as during school. I have a decent skill range within the lab. If I went back and continued working in labs as a tech would I be able to find a job? Or would I have to go get a masters as well. I would not want to work in academic, I'd want to work in biotech or larger corporate companies. Maybe even agricultural and seed research. I would love to do environmental consulting or research new GMO seeds