The advantages and limitations of obtaining informant report data for the courage trait are;
Advantages include;
Large amount of information
Definitional truth based on the observed acts of courage.
Limitations on the other hand include;
Very little behavioral data,
Error; much more likely to remember acts of courage than non-courageous acts.
Answer:
some could have gotten more shade or sun depending on where they were placed ,or some could have had trouble growing,plus some may have gotten more rain , it all really depends on where the plants are placed
The best answer to fill in the blank is "multilayered membrane."