1.)What is excessive hyperextension of the lower spine called? Sam works as a laboratory technician and his work requires him to stand for long periods. Due to this, he developed a developed excessive hyperextension of the lumbar spine.
What is this condition called?
2.)What does MSD stand for?
Following ergonomic and body mechanics principles can prevent MSDs, injuries to the body’s soft tissues.
MSD stands for
3.)Anna is a CNA who has been leaning over doing bed baths on patients who cannot move in their bed. After two hours, Anna has a backache. Which body mechanics principle was she likely violating?
A.
Breathe properly when exerting energy
B.
Use the largest and strongest muscles and joints
C.
Keeping her body over her base of support
D.
Proper alignment
4.)What is the most common adverse event in healthcare facilities?
A.
Lifting injuries
B.
Falling
C.
Cuts and scrapes
D.
Chair’s giving out

What are the types of mutations, and how does each alter the encoded protein? college level answer

Read the following scenario to answer the following question. over the past 60 years, many amphibian species have experienced significant population declines, and some species have become extinct. scientists suspected that local human activities such as the destruction of wetlands, regional pollution, and deforestation were the main reasons for these losses. however, research over the past 20 years reveals significant amphibian population declines in protected areas of the world, such as nature preserves and parks. these global declines suggest widespread problems including increased ultraviolet radiation, acid rain, and disease. in switzerland, for example, 14 of the 20 native amphibian species are threatened with extinction. when most populations of a wide-ranging amphibian species are lost and the few remaining populations are widely separated, we expect to see that a. the founder effect becomes increasingly important b. microevolution no longer occurs c. gene flow between populations is reduced d. artificial selection becomes a greater factor in microevolution

Sally and sue were investigating the topic of friction in science. they used a small car and a ramp as seen in the picture to test what they were learning. they knew that they slipped easily on waxed floors but not on carpet, so they decided to change the material on the surface of the ramp to see what happened. they planned to use glass, carpet, aluminum foil, and sandpaper and run the car down the ramp over each surface. what would be the best research question to guide the girls' experiment? a) does the amount of surface area affect the friction on the moving car? b) will the car travel fastest on the glass surface? c) how does the angle of the ramp affect the speed of the car? d)do rougher surfaces tend to create more friction than smooth surfaces?