Many nonchordates have tails. which feature differentiates a chordate's tail from that of a nonchordate?
a.
chordates have postanal tails.

b. chordates have longer tails than nonchordates.

c. chordate tails are ventral in origin.

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

Astudent analyzed ears of corn that demonstrated two traits in the f2 kernels, purple or white colors and smooth on wrinkled shapes. a tabulation of 135 individual kernels gave the following results: purple and smooth = 75 white and smooth = 28 purple and wrinkled = 24 white and wrinkled = 8 what would be the only phenotype present in the f1 ger

The unique structure of the neuron is dedicated to the efficient and rapid transmission of neural signals. the relationship between neurons, the spinal cord, and the brain constitutes an elaborate communication system throughout the human body. all but one of the functions listed below are a result of this interaction.