The increased acidity of seawater can harm marine life by making ____ available to organisms that require it
a. less nitrogen
b. more sulfur dioxide
c. less carbon dioxide
d. more methane
e. less calcium carbonate
ANSWER: e
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________ enables a single gene to encode two or more polypeptides that are different in their amino acid sequence.
A. Reverse transcription B. Self-splicing C. Capping D. Alternative splicing E. Regulatory splicing
The two closely allied organ systems that allow for running, swimming, and flying under the direction of the nervous system are the _____ systems.
A. skeletal and endocrine B. muscular and endocrine C. muscular and skeletal D. circulatory and muscular E. circulatory and skeletal
What would a Lod score of 3.2 tell you about genetic linkage? What information does the ? value tell you?
What will be an ideal response?
Clusters of phloem and xylem tissues are called
A. root tissue B. ground tissue C. pith D. vascular bundles