Roots exhibit negative gravitropism whereas stems exhibit positive gravitropism.

a. true
b. false


Ans: b. false

Biology & Microbiology

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There are numerous fish genera that have individuals that can change their sex during their lifetime. What is this called?  

A.  sequential hermaphroditism B.  sequential sex determination C.  sequential parthenogenesis D.  sequential production of gametes E.  sequential fertilization

Biology & Microbiology

The ________ divides the left and right chambers inside the nose

Fill in the blank(s) with correct word

Biology & Microbiology

Amino acids always include the following functional groups EXCEPT

A) an alpha carbon. B) a hydrogen. C) an amino group. D) a hydroxyl group.

Biology & Microbiology

Glial cells are cells found in which type of tissue?

A) epithelial B) connective C) muscle D) nervous

Biology & Microbiology