Which pollutant reduces the ability of the circulatory system to transport oxygen? A)
particulate matter
B)
nitrogen oxide
C)
carbon monoxide
D)
sulfur dioxide

Areal dna molecule consists of thousands of these pairs of nucleotides. what is the pairing arrangement of the nitrogen bases

Can you answer all these questions?

Justify your choice of an objective to use when starting your observation of the euglena wet mount; of the euglena are swimming to the left, which way should you move your slide to keep the organism in view