Genetic variation can originate both from the production of new alleles and from the arrangement of

existing alleles.



Indicate whether the statement is true or false.


T

Biology & Microbiology

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The tube-nose of tubenoses may be used as a means of enhancing their ability to smell, or to discern strength of air currents

Indicate whether the statement is true or false

Biology & Microbiology

Seawater and fresh water do not mix very well in fjords

Indicate whether the statement is true or false

Biology & Microbiology

Answer the following questions true (T) or false (F)

1. There are different Toll-Like Receptors for bacteria and viruses. 2. Phagocytes can ingest pathogens, cells, and cell parts in the body. 3. The natural killer (NK) cell specializes in attacking bacteria.

Biology & Microbiology

Rank the following cytoskeletal filaments from smallest to largest in diameter (1 = smallest in diameter, 4 = largest)

______ intermediate filaments ______ microtubules ______ actin filament ______ myofibril Fill in the blank(s) with correct word

Biology & Microbiology