The a and b alleles for the abo blood types, which are both expressed whenever they are present together, are examples of: question 4 options: co-dominant alleles recessive alleles carrier alleles dominant alleles

Which experiment would most likely contain experimental bias

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

What organs comprise the respiratory system of a bird