A. carbon uhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh duhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
Answer:
B
Explanation:
i did this this year in my 9th grade tech class and got it right
A seals flippers has finger bones when a birds wing is just a bone connected to other joints.
Patent fingerprints are made by a liquid or powder that sticks to the finger and then transfers to a surface, leaving an easily visible fingerprint behind. Substances that can leave patent fingerprints are ink, blood, dirt, flour, grease, etc.
