The answer is A, because of the chemical reaction taking place color can change (as in this case). Hope it helps!
The scientist observes at what rate is the concentration increasing or decreasing.
Answer:
The Punnett square is a square diagram that is used to predict the genotypes of a particular cross or breeding experiment. ... The diagram is used by biologists to determine the probability of an offspring having a particular genotype.
Explanation:
in biology it predicts the possible offspring provided the features of the mother or father
Isnt the basic particle that all elements are made of electrons because i know that you can get isotopes which is a whole different subject