Why are bones easily visible in X-ray’s but not so much the skin and other tissue? A. because X-ray waves are absorbed by skin and other tissues but not by bones

B. because X-ray waves are attracted to bones but repelled by skin and other tissues

C. because X-ray waves pass easily through skin and other tissues but are absorbed by bones

D. because X-ray waves change the molecular structure of bones but do not affect the molecular structure of skin and other tissues

Using the periodic table, determine which material is most likely a good conductor

Zoe decided to measure the hand length of each of her classmates. first she marked a line across each student's wrist and lined up a ruler from this mark to the top of the middle finger to measure the length. then she recorded the measurements in the table below. marla did this the same way for each classmate, and then zoe used this ruler to measure each straight line and record the data below. this data is invalid. what is the most likely reason why it is invalid? the ruler is marked in centimeters, but zoe recorded data in inches. the range of lengths is too wide, so zoe must have misread the ruler. marla’s complicated measuring procedure was overly confusing. marla could have been inconsistent while drawing outlines of fingers.

Development of new communities in disturbed environments, such as a burned or a clear cut forest, is called