Biramous appendages in arthropods are only present in:
A. crustaceans.
B. horseshoe crabs.
C. insects.
D. arachnids.
E. centipedes
A
Biology & Microbiology
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Organisms that have their optimum growth pH between 8.5 and 11.5 are called ________.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Vertebrate bone consists primarily of a crystalline mixture of
A. Ca2+; SO4?2. B. Na+; Cl?. C. Ca2+; Cl2. D. Ca2+; PO4?2. E. Adenosine, PO4?2.
Biology & Microbiology
Bacteria protect themselves from bacteriophage infections by producing restriction enzymes that cut
up foreign RNA of the phage. ____________________ Indicate whether the statement is true or false.
Biology & Microbiology
Which disorder is characterized by a lack of the protein dystrophin?
A) hemophilia B) color-blindness C) muscular dystrophy D) Down syndrome E) cystic fibrosis
Biology & Microbiology