The valence shell of hydrogen or helium is unstable when it contains two electrons.
Indicate whether the statement is true or false
False - stable
Biology & Microbiology
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Which of the following are defenses against herbivory?
_____ chlorophyll _____ terpenoids _____ nicotine _____ spines
Biology & Microbiology
A ___ usually phosphorylates and modifies the functional state of a number of distinct substrate proteins
a. phosphate b. receptor for tyrosine kinase c. kinase d. amino acid residue
Biology & Microbiology
Proteins can be regulated by the removal of phosphates by
a. protein phosphatases. b. phosphoproteases. c. protein phosphorylases. d. protein kinases.
Biology & Microbiology
Which of the following organs have cells that can be infected by Chlamydia trachomatis?
A. eyes B. trachea C. rectum D. urethra E. eyes, trachea, rectum, and urethra.
Biology & Microbiology