The graph illustrates what has happened over an 8 year period where non-native perch were introduced into lake malawi in africa. environmental factors remained the same during this period (i. e. temperature, ph, water levels, etc) based on the data, what recommendation would you make to african biologists?
a. remove the remaining pike cichlids, as they are competing with the nile perch.
b. reduce both fish populations, or they will starve one another out.
c. there is not enough data to make a decision yet.
d. remove or reduce the nile perch as quickly as possible, as it is clearly outcompeting the pike cichlid

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

What characteristic make legumes a good food source for food insecure populations

About how much of the cell mass is watet