Dissolved sugars are transported in:
a. cork cambium.
b. epidermis.
c. pith.
d. phloem.
e. xylem
d
Biology & Microbiology
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The atomic ratio of carbon, hydrogen, and oxygen for most carbohydrates is:
a. 1:2:1 b. 1:2:2 c. 2:1:1 d. 2:1:2
Biology & Microbiology
If a diploid sperm fertilizes a diploid egg it will produce a ____ zygote.
a)triploid b)tetraploid c)diploid d)haploid e)hexaploid
Biology & Microbiology
Rickettsias differ from chlamydias in that rickettsias
A) are gram-negative. B) are intracellular parasites. C) require an arthropod for transmission. D) form elementary bodies. E) are enterics.
Biology & Microbiology
All of the following are used by bacteria to attach to host cells EXCEPT
A) M protein. B) ligands. C) fimbriae. D) capsules. E) A-B toxins.
Biology & Microbiology