12. Compared to the parent cell, a daughter cell produced as a result of binary fission? (1) has one-half as many chromosomes
(2) has twice as many chromosomes
(3) is the same size, but has fewer chromosomes
(4) is smaller, but has the same number of chromosomes

Ascience research group is testing a new type of plant food. one trial is conducted in a controlled experiment. the data from the trial show that the plant that received the new food grew faster than the control plant. the group announces that the new plant food makes plants grow faster. what is the main weakness in this scientific claim?