The functions of the casparian strip include all of the following EXCEPT.
A. controlling materials that enter the vascular cylinder
B. enabling a one-way passage of water and nutrients into the vascular cylinder
C. forcing water to pass in between cells of the endodermis
D. Keeping valuable nutrients inside the vascular cylinder
Ans: C. forcing water to pass in between cells of the endodermis
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Plasma will make up ________% to ________% of the blood volume
a. 40, 50 b. 60, 70 c. 50, 60 d. 80,90 e. 20, 30
In rabbits, there are four alleles at the c locus. Arranged in dominance sequence they are:C
(agouti), cch(chinchilla), ch(Himalayan), and c (albino) (a) Is it possible to cross two agouti rabbits and produce both chinchilla and Himalayan offspring? (b) Is it possible to cross two chinchillas and produce 1/2 chinchilla and 1/2 Himalayan? What will be an ideal response?
What happens during Anaphase B?
A. The APC/C gets activated for the first time. B. The spindle apparatus disassembles. C. Kinetochores are pulled toward the poles. D. The nuclear envelope reforms. E. The spindle poles move apart.
An oxygen atom in water has two covalent bonds with hydrogen atoms and two unpaired electrons. How many hydrogen bonds can a water molecule form?
A. 4 B. 5 C. 1 D. 3 E. 2