Biology/Help!
Expert: Walter Hintz - 8/18/2005
Question1. According to the first law of thermodynamics, ____ can't be created or destroyed.
A. sugar
B. matter
C. carbon
D. energy
2. Why is the rate at which mutations occur rather slow?
A. Cells monitor their DNA and correct errors they find.
B. Mutations usually occur in body cells, not in cells that become eggs and sperm.
C. Creatures with mutations are unable to reproduce.
D. Most mutations don't affect critical protein parts.
3.In a contest over territory, two male deer confront each other with antlers lowered and engage in butting heads until one of the two gets tired and wanders off into the forest. This sort of behavior can most accurately be thought of as
A. noncompetitive
B. predatory
C. cooperative
D. selfish cooperation
4. Which one of the following statements accurately describes an enzyme?
A. It causes chemical reactions to occur faster.
B. It's broken down into sugar as it performs its job.
C. It functions as a stabilizing molecules separated.
D. Its main job is to keep reluctant molecules separated.
5. When mitochondria burn sugar in the process called resperation, one of the by-products is
A. starch
B. ATP
C. chlorophyll
D. glucose
6. If you were an organism, which one of the following would be your chief advantage of utilizing oxygen?
A. You're able to act as a fermenter.
B. You're able to produce the carbon dioxide needed by the body.
C. You're able to get rid of volatile hydrogen before it does harm.
D. You're able to produce energy in greater quantities.
7. I invented the basics of sexual reproduction, getting around from place to place, and how to use energy from the Sun. Who am I?
A. Bacterium
B. Multicellular organism
C. Chain of DNA
D. Cooperating cell community
Answer1 B and D The 1st Law speaks to both matter and energy. This is a bad question
2 A
3 A
4 A
5 B Another badly worded question . mitochondria do not burn sigar
6 D
7 B
Would telling me what kind of a course these questions come from Laura? I keep getting the same questions and some are misleading.