Which of the following ions plays the most prominent known role in the opening and closing of
stomata?
a. Ca2+
b. Cl?
c. K+
d. NH4
+
e. Na+
C
Biology & Microbiology
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In genomic research the term contig refers to overlapping nucleotide sequences that are not adjacent in the genome and are formed from smaller fragments.
Answer the following statement true (T) or false (F)
Biology & Microbiology
Buchnera aphidicola provides ________ to its aphid host that are essential to the survival of the insect.
A. carbohydrates B. cellulases C. vitamins D. amino acids
Biology & Microbiology
What do eudicots have that is not present in monocots?
A. Parallel venation.B. Leaf blade. C. Netted venation. D. Nodes. E. Internodes.
Biology & Microbiology
Choanocytes are found in ____ and participate in intracellular digestion
a. birds b. earthworms c. grasshoppers d. humans e. sponges
Biology & Microbiology