What are these tissues (30 points, plz answer) -Skin, lining of organs, glands
-brain, spinal cord
-cartilage, blood, bone, fat
-heart, muscles, organs

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.

What type of organic molecule comprises the majority of a potato?

How might this scientific phenomena be explained? a paper clip floats on water.