There are no options to select.
signs would include:
Cervix dilated at least 4 or 5 C
Contractions
Water breaking
Lipids don't dissolve in water because of the different polarities. Water is polar and lipids are not polar which is why they don't dissolve. What this means is that they don't bond and don't share electrons and therefore don't mix.
When the continents are at the Earths poles, they receive less sunlight.
Most models can't incorporate all the details of complex natural phenomena. For example, when measuring distances around the Earth it's convenient to model the Earth as a sphere, but this doesn't incorporate variations in distance because of mountain ranges, valleys and other topological features the traveler must traverse. Incorporating these additional details would make the model too complex for easy use. Since models must be simple enough that you can use them to make predictions, they often leave out some of the details.
ALSO.
The conformation of molecules are based on probability. It fails to take into account the electronegativity of individual atoms. And it is ineffective in showing inorganic interactions with metals and such.
Answer:
sodium can form an ionic bond with fluorine
Explanation:
fluorine is f ;)
this happens because the sodium atom needs to lose an electron so the fluorine electron can join and create the bond.