cell to cell connection (in animals vs. plants)
-:- plants = plasmodesmata, flow of nutrients between cells
animals = tight junctions
convergent evolution
-:- organisms independently evolve similar traits as a result of having to
adapt to similar environments
limited solutions to the same...
✓ -:- all creatures are bound by the same laws as inanimate matter
homeostasis
homeostasis
✓ -:- a constant internal environment in the face of a changing external
environment
control system components of homeostasis
✓ -:- (1) sensor (protein based)
(2) controller
(3) effector (changes physiological variable)
negative feedback
4|P a g e | G r a d e A + | 2 0 2 0 2 5
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