Iin a forest ecosystem, wolves prey on rabbits. the graph below shows that the relationship between the populations of rabbits and wolves over time follows a predictable pattern. a graph of population over time. population is represented on the y axis. time is represented on the x axis. a blue line is drawn rising and falling up and down over time, representing the population of wolves. a red line, representing the population of rabbits, is drawn rising and falling up and down over time with roughly the same shape as the blue line, but shifted slightly to the left. which of the following best explains this natural phenomenon? --answers-- a. the rabbit population decreases as the rabbits migrate to escape predators, and the wolf population decreases as the wolves follow their prey. b. the rabbit population increases after a decrease in wolf population because wolves and rabbits compete for some of the same resources. c. the populations of wolves and rabbits increase at the same rate when environmental conditions are favorable and decrease when conditions are unfavorable. d. the wolf population increases after an increase in rabbit population, and then decreases when rabbits are less readily available.

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

Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%

First idea: suddenly, women were leaving their homes to cycle and socialize on country roads and city streets. —wheels of change, sue macy second idea: it was not a stretch for some cyclists to see the possibility of a larger role for women in the world. —wheels of change, sue macy what type of graphic organizer would best represent the connection between these two ideas? 1) a t-chart that separates ideas into two different categories 2) a chronology that shows 3) a sequence of several events a cause-and-effect graphic that shows how one idea led to another 4)a problem-solution graphic that presents a problem and a solution to the problem