Which organism has hemoglobin located in the fluid portion of the blood, giving it a red appearance?
A. grasshopper
B. bird
C. flatworm
D. human
E. earthworm
Answer: E
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Helicase PcrA follows classic Michaelis-Menten kinetics. In this reaction, ATP serves as a substrate for hydrolysis, while the DNA is most appropriately called the _____________
A. product. B. substrate. C. intermediate. D. coenzyme. E. ligand.
When the atria of the heart are full of blood, the ____ valves are closed
a. atrioventricular b. aortic c. pulmonary d. pulmonary and aortic e. atrioventricular and aortic
The ________ is the selective barrier of a root that determines which substances pass between the cortex and vascular tissue
A) epidermis B) endodermis C) cuticle D) xylem
Labeling.The following statements refer to the figure below showing the general body plan of a plant.
?
Figure 27.2
The plant parts ABOVE the line at "C" represent the __________.
A. ground tissue only B. root system C. shoot system D. stalk E. light-independent parts