Skeletal muscle groups that work together to create the same movement are referred to as
A) involuntary.
B) antagonistic.
C) synergistic.
D) sarcomeres.
E) myofibrils.
C
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In one set of experiments she succeeded in increasing acetlylation of histone tails. Which of the following results would she most likely see?
A) increased chromatin condensation B) decreased chromatin condensation C) activation of histone tails for enzymatic function D) decreased binding of transcription factors E) inactivation of the selected genes
Genetic linkage leads to the production of a significantly greater than expected number of gametes containing chromosomes with __________
A) allele combinations that are different from parental combinations B) parental combinations of alleles C) mutant alleles D) dominant alleles E) recessive alleles
What type of epithelial tissue lines the upper respiratory tract?
a. pseudostratified columnar epithelium b. simple squamous epithelium c. ciliated columnar epithelium d. stratified squamous epithelium e. ciliated squamous epithelium
Which statement is NOT true about the pressure-flow model of phloem transport?
A. Sugar produced by photosynthesis is actively transported into phloem cells. B. Pressure is created in the phloem by the buildup of water and sugar. C. Sugar is actively transported out of the phloem at a sink area such as the root. D. Water is actively transported into phloem. E. Phloem has been measured moving at a velocity of 1 m an hour.