Any part of an ecosystem that is a biotic is

a - thriving
b - nonliving
c - symbiotic
d - related to water

If the first nucleotide after the promoter on the bottom dna strand in the simulation is changed from c to t, what would the resulting nucleotide be on the mrna? test your prediction by making the change and running the simulation.

This is the amino acid cysteine. circle the amine group, put a box aroundthe carboxylic acid group and use a different colored pencil/pen to circle the sidechain (r group). h o | ||nh2— c- c-oh | ch2 | sh

Which statement about the immune system is false? a. lymphocytes reduce inflammation, b. b cells remember specific pathogens. c. most white blood cells kill bacteria d. white blood cells are made in lymph nodes.