1 mile.
Since he walks at a speed of 2 miles per hour, he will have only walked 1 mile after walking for half of an hour.
Answer:
Gene mutations can be caused by environmental factors such as ultraviolet radiation from the sun, or carcinogens due to ionizing radiation. Mutations can also occur if an error is made as DNA copies itself during DNA replication, mitosis and meiosis.
Explanation:
A. true, because aflatoxins are harder to identify than other food-borne illness, and by the time it is in you, you are already sick.
Answer:
5 lumbar vertebrae
Explanation:
As you can see in the image I annexed, a typical adult skeleton has 5 lumbar vertebrae (colored in red), they are cylindrical bones located between the rib cage and the pelvis, they are the largest segments of the vertebral column. These vertebrae carry all of the upper body’s weight, they protect the spinal cord and nerves in the vertebral canal, they also provide flexibility and movement to the trunk region.
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