11) whatever its ultimate cause(s), the cambrian explosion is a prime example of
a) mass exti...
Biology, 16.09.2019 22:00 nikejose11
11) whatever its ultimate cause(s), the cambrian explosion is a prime example of
a) mass extinction.
b) evolutionary stasis.
c) adaptive radiation.
d) all three of the responses are correct.
e) only two of the responses are correct.
Answers: 1
Biology, 21.06.2019 14:00
A3-year-old child with nephrotic syndrome has been receiving prednisone for 1 week. the nurse reviews the child's progress record and determines that the medication has been effective. what information supports this conclusion? select all that apply.
Answers: 3
Biology, 21.06.2019 18:30
How is the male reproductive system different from other body systems? it isnβt necessary to vital signs. it monitors other body systems, and adjusts if necessary. it transports items from one system to another. it is the only system that produces hormones in the male.
Answers: 3
Biology, 21.06.2019 20:30
Match the descriptions / definitions with the term they best describe 1. three dimensional relationship of the different polypeptide chains in a multisubunit protein or protein complex 2. common folding pattern in proteins in which a linear sequence of amino acids folds into a right-handed coil stabilized by internal hydrogen-bonding between polypeptide backbone atoms. 3. the amino acid sequence of a protein 4. a region on the surface of a protein that can interact with another molecule through noncovalent bonding. 5. three-dimensional arrangement of alpha-helices and beta-sheets within a single polypeptide, typically stabilized by a variety of noncovalent bonds, including ionic and hydrogen bonds, and nonpolar interactions / hydrophobic force. 6. the chain of repeating carbon and nitrogen atoms, linked by peptide bonds, in a protein. 7. common structural motif in proteins in which different sections of the polypeptide chain run alongside each other and are joined together by hydrogen bonding between atoms of the polypeptide backbone. 8. portion of a polypeptide chain that has a discrete tertiary structure of its own and can often fold independently of the rest of the chain 9. regular local folding patterns in a protein, including alpha-helix and beta-sheet a. primary structure b. beta-sheet c. protein d. coiled-coil e. polypeptide backbone f. secondary structure g. side chain h. tertiary structure i. binding site j. alpha-helix k. quaternary structure l. protein domain
Answers: 2
Biology, 22.06.2019 11:30
About how many years does it take for one cycle of surface water to become deep water and then surface water again in the oceans? 101001,000
Answers: 1
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