____________________ are open channels that connect the cytoplasm of muscle cells and permit rapid transfer of ions and small molecules between them.

Fill in the blank(s) with the appropriate word(s).


Gap junctions

Biology & Microbiology

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Phytoestrogens are steroid-like chemicals that are derived from soy. One of their characteristics is that they are able to  

A.  paralyze nerve endings. B.  bind to the human estrogen receptor. C.  cause estrogen breakdown within human cells. D.  increase the rate of prostate cancer in men. E.  cure malaria.

Biology & Microbiology

If a single stranded RNA virus contains genomic RNA that is complementary to the mRNA that it produces, what type of virus is this categorized as? 

A. Minus Strand or Negative Strand is acceptable. B. Plus Strand C. Positive Strand D. Negative Strand E. Minus Strand

Biology & Microbiology

Relaxation of the ________ releases urine from the body

Fill in the blank(s) with correct word

Biology & Microbiology

What is the major defense mechanism employed against virus infections?

A. Autoimmunity B. Allergies C. Antibody-mediated Destruction D. Phagocytosis E. Cell-mediated Immunity

Biology & Microbiology