How do floating discs correspond to the rate of photosynthesis?

Which animal group is the largest and contains more species from all the other living groups combined? is it mammals or

Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from

Which statement about relative potential energy of electrons is correct? a. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 2 s orbital of the second electron shell. b. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 3 p orbital of the third electron shell. c. an electron in the 3 p orbital of the third electron shell has more potential energy than an electron in the 2 p orbital of the second electron shell.