Which molecule contains a polar covalent bond?

a. ch4
b. h2o
c. cl2
d. nacl

Q: a: in sexually reproducing animals, once fertilization of the egg takes place, the exists as a single cell until cell division begins

How would you describe the the organisms in the second row of model 1 that are connected to the parents by a line

Drag each description to the correct location on the image. not all descriptions will be used. describe the parts of a comet. the frozen part of the comet the atmosphere of gases and dust formed when the nucleus vaporizes tail made of small, solid dust particles tail made of ions that appears to point away from the comet's orbit