Which of the following elements is(are) important in the transport of electrons? Select all correct answers
A. sulfur
B. iron
C. manganese
Answer Key: A,B
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On which body segment are arthropod wings attached?
A) head B) abdomen C) thorax D) evenly split between the abdomen and thorax
Which of the following represents genes that have the potential to mutate and cause cancer?
a. proto-oncogenes b. transgenes c. oncogenes d. tumor suppressor genes
If the decolorizer is not left on long enough in the Gram-staining procedure, gram-positive organisms will be stained ________ and gram-negative organisms will be stained ________.
A. purple; colorless B. purple; purple C. purple; pink D. pink; pink
Which lineage of Cnidarians exist only as polyps as adults, build calcium carbonate exoskeletons, and have a mutualistic relationship with photosynthetic protists?
a. Scyphozoa b. Anthozoa c. Cubozoa d. Hydrozoa