Answer:
by separating the most important ideas from the detailed text
quantity of the substance remaining = initial quantity of the substance * (.5)^(time elapsed/half life of the substance)
2.50 = 20 * (.5)^(19.2/x)
It would be AA, Aa, and aa. That’s going left to right and the last one being aa.
Internal fertilization is when male deposits sperms directly in females body whereas internal fertilization is when male and female gametes unite outside the female body .
hope it helps u.....