PLEASE HELP ME NOW (NOT FOR BEGINNER) 1.What factor increases the likelihood of a landslide occurring?
A. lots of water
B. forest fire
C. all of the above
D. over steepening of a hill

2. Are landslides be considered a fast or slow geological process?
A. Slow, because it takes all winter for the snow to build up.
B. Slow, because all of the snow has to melt before a landslide can happen.
C. Fast, because rain falls fast.
D. Fast because conditions for landslides happen within months, slow processes can take millions of years.

3.The average elevation of the Grand Canyon is 2,200 feet above sea level. Which of the following could be an explanation of why there are fossils at the top of the canyon?
A. The canyon was once covered by the ocean but the land receded (went down)
B. The canyon was covered by the ocean and the water receded (went down).
C. It is still part of the ocean, that’s why there are marine animals there.
D. All of the fossils came from things that lived in the Colorado River.

4. Why does the Grand Canyon have layers?
A. The uplift of the land caused layers.
B. Deposition of sediments over millions of years.
C. Erosion by wind has worn away sedimentary rock.
D. Erosion by the Colorado River has formed layers.

Compare asexual reproduction to sexual reproduction

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

Anton created a chart listing different types of materials. which best complete the chart?