Prokaryotes split into two lines early in the history of life. The differences are so fundamental that they are assigned to two different domains, the ________ and the Bacteria.
Fill in the blank(s) with the appropriate word(s).
Archaea
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The muscles we call the hamstrings get their names from the long tendons (the strings) that these muscles have. When a pig was slaughtered, the cut of meat we call a ham was strung up in the smokehouse by these tendons. Where on a pig, then, does the ham come from?
a. upper front leg b. neck region c. upper back leg d. the belly region e. the shoulder region
Bone cells called ____ continually remodel bone
a. chondrocytes b. adipocytes c. osteons d. osteocytes e. fibroblasts
Which of these groups consist of parasitic flagellated cells, such as Trypanosoma, the organism that causes sleeping sickness?
A) metazoans B) kinetoplastids C) diatoms D) brown algae E) ciliates
Which statement is true?
A.) the heat released by an animal cell comes from the chemical bond energy present in the food molecules it metabolizes B.) cells obey the first law of thermodynamics but are exempt from the second law C.) the breakdown of food molecules generates heat, which cells then use to drive the synthesis of large molecules D.) a cell generates order by decreasing the entropy of its surroundings E.) a cell takes in heat from the environment to power its biosynthetic reactions, thereby obeying the second law of thermodynamics