Answer:
a chemical reaction mass is neither created nor destroyed
Explanation:
a chemical reaction mass is neither created nor destroyed
A comet's tail will always point in the opposite direction of the sun, when orbitting around the sun.
Answer:
Incubation period
Explanation:
The incubation period occurs in an acute disease after the initial entry of the pathogen into the host (patient). It is during this time the pathogen begins multiplying in the host
The both have a tail AKA A Spine in a embryonic