How does the body respond when a person is lifting heavy weights?

A. Fast-twitch muscle fibers contract quickly to generate force.

B. Fast-twitch muscle fibers contract slowly to deliver oxygen.

C. Slow-twitch muscle fibers contract slowly to deliver oxygen.

D. Slow-twitch muscle fibers contract quickly to generate force.

Ryan is a nine-year-old boy whose father wants him to be a soccer player. ryan does not have an aptitude for soccer, and keeps failing miserably at it. his father criticizes him in an attempt to motivate ryan to play better. as per erickson’s psychosocial theory, what is a likely consequence of this criticism? a. ryan may start developing an interest in soccer. b. ryan may develop a respect for his father. c. ryan may develop an inferiority complex. d. ryan may excel at soccer. e. ryan may gain self-esteem.

What should you sprinkle on cut fruits to slow the browning process? a.oil b. lemon juice or acids c.salt d.melted butter

Will treating a viral infection with antibiotics affect the course of the infection? a) no; antibiotics work by inhibiting enzymes specific to bacteria. antibiotics have no effect on eukaryotic or virally encoded enzymes.b) no; antibiotics do not kill viruses because viruses do not have dna or rna.c) yes; antibiotics activate the immune system, and this decreases the severity of the infection. d) yes; antibiotics can prevent viral entry into the cell by binding to host-receptor proteins.