Answer:
Protons and neutrons have approximately the same mass, about 1.67 × 10−24 grams, which scientists define as one atomic mass unit (amu) or one Dalton. Each electron has a negative charge (−1) equal to the positive charge of a proton (+1). Neutrons are uncharged particles found within the nucleus. hope this helps you :)
Answer:
b warm wet air rises and punches cold dry air down causing the air to spin
Answer:
D fleas affect all animals
I think it is B because a cladogram shows how species are related AND also shows the evolution between them.
