An enzyme may become inactive when: a. body temperature rises excessively b. the ph of body fluids becomes too acidic c. homeostasis is being maintained : d. all of the above e. a and b only f. b and c only

i'm pretty sure it's spores

phylogenetic tree is the tree of life or evolution tree. it shows the different branches of evolution. the sequence goes like tissues - coelom - backbone - endoskeleton - segmentation

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.