Which structure or compartment is separate from the apoplastic route?
A) the lumen of a xylem vessel
B) the lumen of a sieve tube
C) the cell wall of a mesophyll cell
D) the cell wall of a root hair
B
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Arthropods have ____
a. exoskeletons b. endoskeletons c. hydrostatic skeletons d. segmental skeletons e. squishy skeletons
Osteoporosis is a condition characterized by
a. excessive build up of bone calcium deposits. b. hardening of the arteries in the bone. c. loss of bone mass. d. excessive rigidity of some bones. e. curvature of the spine.
Refer to the accompanying figure. What is the structure labeled as 8 in the figure?
a. anus b. mouth c. ganglia d. eyespots e. pharynx
If IA and IB dominate i, which phenotype indicates the genotype when the alleles IA and i are present?
A. type A blood B. type B blood C. type AB blood D. All of these answers are correct.