Pleas !

all of the following are vertebrate characteristics except:

a. a postanal tail

b. pharyngeal pouches

c. a ventral hollow nerve cord

d. an endoskeleton

Rank the three variables in terms of how strongly they affect the "species" composition of the bacterial communities. place the variable with the weakest effect on the left and the variable with the strongest effect on the right.

What two fields of study provide the core information that is used to classify organisms?

What advantage does a crop that undergoes vegetative reproduction have over plants that start from the seed? 1points a they store nutrients. b they can travel farther. c they experience more genetic variation. d they only occur in high-resource environments.