Endocytosis and exocytosis
5. are endocytosis and exocytosis forms of passive or active transport?
6. give a scenario where a cell may need to perform a form of endocytosis.
7. give a scenario where a cell may need to perform a form of exocytosis.

There is one s orbital, and there are three p orbitals, five d orbitals, and seven f orbitals. thus, the answer is b. do not confuse the number of orbitals in a subshell with the number of electrons the subshell can hold. each orbital can hold two electrons, so the capacity of an nf subshell is 14 electrons.

Spontaneity tell us the direction of the reaction, but not how fast it goes. gibbs free energy brings together enthalpy, entropy and temperature in one easy formula. g = h - ts. and, finally the sign of delta g is always negative for a spontaneous reaction.

Green is technically every other color but green but the other wavelengths of the other colors get absorbed by the object and the wavelength of the color green gets reflected

Combustion is the act or process of burning. therefore, i believe the answer is  a: burning wood.