Biology on the Brain

You know you think too much about biology when you walk by a car whose plate starts with HAR and the first thing you think of? Hardy-Weinberg.

Bivalve and commensalism with a crab (or a mite and mammal hair)

Predator-prey and asymmetrical predator prey

Ah! Don't forget mutualism and asymmetrical mutualism.
When two organisms do well together but okay apart, but one gets more dependent on the other.

K=carrying capacity in the ecosystem and the niche and resources it uses
It can't go above K. Period. Sometimes a species can outcompete another- Case 1 or 2 depending on your graph. Or they are at equilibrium whether it's stable (case 4) or not (case 3).

T. confusum vs. T. castanaeum (beetles that do well depending on hot/humid or cold/dry). The part in the middle they're both doing alright.


....

I'm done.