White blood cells
A) are formed in the spleen. B) carry oxygen in blood.
C) clot blood. D) protect the body from microbes.
D
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Respiration is measured in a human. How do the concentrations of O2 and CO2 in inhaled air compare with exhaled air?
A. Inhaled air has less O2 and more CO2 than exhaled air. B. Inhaled air has more O2 and less CO2 than exhaled air. C. Inhaled air has more O2 and CO2 than exhaled air. D. Inhaled air has less O2 and CO2 than exhaled air.
Sandra has spent quite a bit of time in the sun. UVA has led to mutations in some of her cells,
but this damage was repaired by __________.
a. DNA repair genes b. oncogenes c. tumor suppressor genes d. all of these
Alteration of the ________ structure of a protein can transform the protein into an infectious agent known as a prion
A) primary B) secondary C) tertiary D) quaternary
Explain how you would distinguish a monocot from a eudicot by looking at the anatomy of their roots. What will be an ideal response?