Both humans and dolphins are members of the class mammalia. what is a similar external feature of both? overall body shape appendages at front and back of body skin texture facial features

Ageologist determines that a sample of a mineral cant 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

Why does it matter if osmosis is put into a “scab” or a “nosebleed? ” where would that leave him?

Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?