Answer:
yes it is.
Chromatography method help combat toxic food colorings
Alright, so mass is a property of a physical body. During physical changes, such as acceleration, force, etc, the mass stays the same since we are not affecting its physical shape, just where it is physics wise. So yeah mass is conserved during a physical change.
(This is very confusing I'm bad at explaining things sorry)
The answer is D.
Heterozygous individuals pass the dominant and recessive alleles to offspring.
Tropism is like the an organism's reaction/response to a stimulus. The stimulus is usually external, but sometimes it can be internal. Phototropism is the organism's reaction to light.
Butterflies belong to the phylum Arthropoda.