Nucleus for what?
Atom? Animal Cell? Plant Cell? Each have different structures.
Because it is meant to be like that for animals , us humans dont need all the stuff that animals do.
The answer is A. small nutrients
A food web shows multiple pathways of energy flow through the ecosystem
The Moon is the only natural satellite of the Earth. With an equatorial diameter of 3476 km, it is the fifth largest satellite in the solar system, while in terms of proportional size with respect to its planet it is the largest satellite: a quarter of the diameter of the Earth and 1/81 of its mass. I hope I have helped you and if you do not forgive