________ are formed by certain bacteria that convert iron to magnetite; these structures are of interest to ________ because they are despite the fact that they are perfectly formed despite the fact they are only tens of nanometers in diameter.

What will be an ideal response?


Magnetosomes; nanotechnologists, magnetosomes; nanotechnologists

Biology & Microbiology

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During bacterial conjugation, bacterial DNA with different alleles are transferred. Bacteria use a long

tubular structure called a ____ to obtain differing alleles.

a. metabolic pilus b. asexual pilus c. flagellum d. cilia e. sex pilus

Biology & Microbiology

Trace elements are not important elements for living organisms

Indicate whether the statement is true or false

Biology & Microbiology

Lymphocytes called __________________ secrete antibodies.

A. plasma cells B. T cells C. helper T cells D. natural killer cells

Biology & Microbiology

Which of the following contains the testes?

a) epididymis b) Mesentery b) prostate d) scrotum

Biology & Microbiology