Back pain is due to many factors such as bone disorders and poor posture.
a. true
b. false
a. true
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During the process of swallowing, ____
a. the esophagus is temporarily closed by the glottis b. the epiglottis closes the trachea leading to the lungs c. the pharynx restricts food entry to the esophagus d. the epiglottis seals the esophagus e. peristalsis begins in the pharynx
In the graph, the X-axis is showing different doses of vaccine, including "placebo," "low," "medium," and "high." These levels of vaccine were applied to different groups of babies to test if and how much the vaccination helped reduce the incidence of rotavirus, an illness that can quickly dehydrates infants to critical or fatal levels. These dosages in this medical study represent
This figure shows graphed medical research results from a study on a new vaccine. The research was done in an effort to determine if a new vaccine would be effective in preventing potentially dangerous rotavirus infections in infants. Green data bars represent occurrence of infant cases that had normal rotavirus strains that aren't critically dangerous. Blue data bars represent occurrence of infant cases that had more dangerous rotavirus strains that can hospitalize or lead to fatality of infants.
A. the independent variable.
B. the standardized variable.
C. the dependent variable.
D. the control group.
E. the placebo.
What is the role of the apical complex in apicomplexans?
A. The apical complex enables the apicomplexan to penetrate and bore into a host cell. B. The apical complex is a defensive structure that is used to destroy bacteria. C. The apical complex is a motility structure that enables cell movement. D. The apical complex is a feeding structure through which small food particles are taken in.
In the moss life cycle, the ________ is the dominant generation.
A. diploid sporophyte B. haploid sporophyte C. haploid gametophyte D. diploid gametophyte