How many bases are required to form a codon?

a. 5
b. 2
c. 4
d. 1
e. 3


e

Biology & Microbiology

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Answer the following statements true (T) or false (F)

1. Hagfish are craniates but are not vertebrates. 2. A hagfish is a not a fish. 3. Lampreys' main body support is the notochord, not a vertebral column. 4. Sharks have cartilaginous skeletons because bone-forming ability had not yet evolved in vertebrates when they originated. 5. The swim bladder is an organ in primitive fish from which the lungs of terrestrial vertebrates developed.

Biology & Microbiology

Two amino acids are bonded together to form a

dipeptide by what type of reaction?

a. condensation b. oxidation reduction c. hydrolysis d. decomposition e. acid-base

Biology & Microbiology

The cohesiveness between water molecules is due largely to:

a. hydrogen bonds. b. polar covalent bonds. c. nonpolar covalent bonds. d. ionic bonds. e. hydrophobic interactions.

Biology & Microbiology

The ________ are an important and often overlooked group of organisms that release nutrients into the soil or water

A) decomposers B) heterotrophs C) producers D) autotrophs E) tertiary consumers

Biology & Microbiology