Endocrine glands are responsible for
a. controlling body temperature
b. regulating body activities.
c. stimulating an immune response.
d. keeping the brain bathed in fluid.

i think it is b. but i am not sure

The image shows embryos of three vertebrate classes

Common commercial benefits of microorganisms include synthesis ofa. insulin.b. antibiotics.c. aspirin.d. antibiotics and aspirin.e. antibiotics and insulin.

Astudent poured a solution of bromothymol blue indicator into three test tubes. then he placed an aquatic plant in two of the test tubes, as shown below. he placed a stopper on each test tube and placed them all in the dark for 24 hours. bromothymol blue turns from blue to yellow in the presence of co2