The atomic number of hydrogen is 1 (count the protons). The atomic mass number of hydrogen is also one (there are no neutrons!). For carbon, the atomic number is 6, and the atomic mass number is 12 (6 protons plus 6 neutrons). Adding the two neutrons changes our atom.
The answer is root hairs.
Rhizoids derive from epidermal cells of bryophytes. They are hair-like structures similar to roots of vascular plants. But, they are unicellular structures, <span>unlike roots, which are multicellular. Not only they look alike, but they have similar functions as roots. The functions of rhizoids are the absorption of water and minerals from the soil and a support of the bryophytes.</span>
Answer:
D. O
Explanation:
Blood type O- is often referred to as the universal donor. If someone has lost an excessive amount of blood and their blood type is unknown. It is safe to use a type of blood that anyone can accept without being rejected by the human body.
