The polar bear is one of the largest carnivores. it hunts mainly seal on the arctic ice. what could be a factor that adversely affects the polar bear’s success at hunting, and, in the long run, significantly affects the animal’s chance of survival?
a) global warming melts sea ice, reducing the polar bear’s ability to get food.
b) the freezing over of water pockets, making it difficult for the seals to escape.
c) the absence of vegetation in the region during the winter, causing the bears to starve.
d) the rise in temperatures of the region, disturbing the thermoregulation process of the bear’s body.

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

Explain the process that creates the heat of the sun?

Wich of the following are manual restraint techniques for dogs