A microorganism that does not have catalase or superoxide dismutase would find it difficult to live in an environment with ________.
A. carbon dioxide
B. high salt
C. temperatures above 37° C
D. oxygen
E. high acidity
Answer: D
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Which major tissue category often has more extracellular matrix material than cellular material?
a. epithelial tissue b. connective tissue c. muscle tissue d. nervous tissue e. adipose tissue
Which of the following statements about the epicotyl is true?
A. It is the portion of the stem axis that is directly below the cotyledons. B. It forms immediately above the secondary roots of a seedling. C. It takes up most of the volume within a monocot or dicot seed. D. It remains in the ground after a seed has germinated. E. The shoot apical meristem of a seedling is located just above it.
Which of the following bacterial genera includes species that protect areas of the body such as the intestinal tract and the vagina from invasion by pathogens?
A) Staphylococcus B) Listeria C) Lactobacillus D) Mycobacterium E) Corynebacterium
If a person is dehydrated, how will this affect nutrient exchange at the capillaries?
A. Plasma proteins will be able to leave the capillary and enter the tissues. B. Carbon dioxide will not leave the tissues and enter the capillary. C. It will have no effect. D. Water will not leave the arterial end of the capillary and enter the tissues. E. Oxygen will not leave the capillary and enter the tissues.