What is the process that changes one set of chemicals into another set of chemicals?

a) cohesion
b) adhesion
c) chemical reaction
d) dissolving


Ans: c) chemical reaction

Biology & Microbiology

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A rise in aquatic nitrogen and phosphorus levels leads to a strong increase in the population growth rate of algae and cyanobacteria. This suggests that nitrogen and phosphorus are typically _______________ in aquatic habitats

A. always abundant B. not at all present C. the limiting factors for planktonic growth D. unnecessary for planktonic growth

Biology & Microbiology

Cells that are the main water-conducting cells of a

plant are a. sclereids. b. tracheids. c. sieve tubes. d. parenchyma. e. all of these.

Biology & Microbiology

In producing a recombinant plasmid to be used to clone a given donor insert, it is possible to cut both the donor and plasmid with the same restriction enzyme, resulting in complementary sticky ends

Assuming plenty of plasmid DNA is available, why is further selection necessary before the introduction of the plasmid into a cellular system? A) Contamination will have introduced other donor inserts. B) Some donor inserts will be single stranded and deteriorate. C) Some donor inserts will be sensitive to particular antibiotics. D) Some donor pieces will remain uninserted. E) Some donor strands will be inserted with an incorrect orientation.

Biology & Microbiology

Describe the function of the thymus as it relates to the lymphatic system.

What will be an ideal response?

Biology & Microbiology