They have kingdom, class, and phylum, I’m kind of confused about the answer because of that.
Protons have a positive charge. The number of protons in a nucleus determines the identity of the atom (element) and this number is called the atomic number.
D. Proton
All organisms do have a closed circulatory system
so A <span />
I'm gonna go and say it's parenchyma but I'm not 100% sure
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 :)
