In chickens, does the development of an embryo take place externally or internally?

the embryo develops special membranes external to its body to access the nutrients in the egg

external

Explanation:

embryo develops special membranes external to its body to access the nutrients in the egg and to carry out essential bodily functions

currents is the correct answer.

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.