Answer:
Cell Theory
✓ All living things are made up of cells
✓ Cells come from other cells
✓ Cells are the smallest living part of a living thing
✓ Cell function to keep the cell, and the organism, alive
The answer is A: photosynthesis :)
Heat Creation. Fish, like all animals, create heat from metabolic activity. ...
Heat Loss. Fish lose metabolic heat through their gills. ...
Homeostasis. Most fish are poikilothermic, which means their body temperature changes with ambient temperature. ...
Exceptions to Pure Poikilothermy.
Https://quizlet.com/13068437/blood-vessels-flash-cards/
Try this website it might help you out more.
They have little things at the ends that are almost like sensors that detect and analyze what you're supposed to feel and they send a signal to you brain to tell you how to react.
