If resources get low, the population's numbers can decrease.
At first you have to write the variables out which are

now you have to combine like terms


now you add these two variables and end up with answer of
Lipids (Biology, Chapter 8)
Answer:
Botánica medicinal
Explanation:
En botánica médica, partes de plantas o árboles como hojas, raíces, cortezas, semillas, frutos, etc. son esenciales para obtener beneficios medicinales debido a la presencia de ingredientes activos. Las raíces se utilizan principalmente para fabricar medicamentos en función de sus componentes y también de la estructura de la raíz, es decir, sólida (ginseng), carnosa (garra del diablo) o fibrosa (ortiga).
Answer:
A,B,D
Explanation:
I believe that "B" is a possibly one; if not, then just A and D.
Also by examining other economy; you can learn from it, what people do and how they live their lives, same with listening to different music from there, because people listen to different music in different cultures as well.^^
Have a great day, and let me know if its correct or not, if so I will take down the answer or fix it if its wrong.