1. the idea that organisms shared a conserved, core processes can be used as evidence to explain that all life shares a common origin. which of the following describes evidence that supports this claim? . a-all organisms have dna and undergo transcription and translation. b-all organisms reproduce by carrying out sexual reproduction. c-cellular respiration take place in the cells mitochondria in all organisms . d-dna replication and reapir takes place in the cells nucleus. 2. which of the following represents one of the steps through which simple cells are hypothesized to have been produced?

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

Me with these questions if you’re it sure don’t answer

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic