The answer is (1) !!
it is one direction, from sun to produces to consumer !!
Organisms that use the same resources because there may not be enough for all, so it then becomes a competition of who gets it and who doesn't.
Athletes tend to have lower resting heart rates<span> because training programs that build speed, fitness, muscle and endurance also train your heart muscles to pump a </span>higher<span> volume of blood with each heartbeat.</span>
Feldspar and quartz are the correct answers
The answer to your question is A)front