Stress, inflammation, trauma, allergy, or a certain disease.
Answer: The boy would probably need glasses.
Explanation: The Snellen vision test is a test used to measure visual acuity. The test is based in a chart printed with 11 lines of block letters. The first line has large letters, and can be any letter from the alphabet. The following rows increase numbers of lettes and decrease in size. This test is frequently used for doctors to evaluate the vision. So if the boy couldn't see the letters from a distance that any person could see without problems, he probably have nearsightedness, which means he has an eye condition that can view objects up close clearly but things farther away may appear blurry, and to correct that he will need to use glasses.
Answer:
Smooth and cardiac muscle are under involuntary control. True
Explanation:
Smooth and cardiac muscle are involuntary while skeletal muscles are voluntary.
Answer:
DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms.
Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).
