In which environment are you most likely to encounter a hyperthermophile?
A. hot tub
B. warm ocean water in Florida
C. hydrothermal vent at the bottom of the ocean
D. human body
Ans: C. hydrothermal vent at the bottom of the ocean
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A primosome consists of a polymerase and a single-stranded binding protein
Indicate whether the statement is true or false
Which of the following statements regarding leaf structure and function is not true?
a. Most photosynthesis takes place in the palisade mesophyll. b. Most stomata are usually found on the upper epidermis rather than the lower. c. The palisade mesophyll is more densely packed than the spongy mesophyll. d. A waxy cuticle covers the epidermis of many leaves. e. The epidermis of many leaves has associated trichomes.
Which of the following is a type of epithelial
tissue that is several layers thick?
a. stratified b. loose connective c. dense connective d. simple e. more than one of these
In which of the following does the environment play a causal role?
a. Marfan syndrome b. cystic fibrosis c. dog coat color d. sickle-cell anemia e. depression and schizophrenia