Implanting pig extracellular matrix in a damaged human thigh can help muscle tissue regrow.
a. true
b. false
Ans: a. true
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Which of the following is not an example of a fungal pathogen?
A. endophytes B. smuts C. rusts D. athlete's foot E. vascular wilt fungus
Darwin was influenced by which concept attributable to Charles Lyell?
a. The geological history of Earth is a series of catastrophes. b. Acquired characteristics can be inherited. c. Natural selection operates on the tremendous variation found in nature. d. All life forms a part of a great Chain of Being. e. Gradual geologic forces formed the earth's current landscape over a long period of time.
The human body must maintain a constant pH. In the blood, bicarbonate serves as a(n) ________ to help maintain the necessary pH
A) acid B) buffer C) solvent D) base
Nucleic acids have primary, secondary, tertiary, and quaternary levels of organization.
Answer the following statement true (T) or false (F)