Very long and large organic molecules called are made of small units called
. Examples of the small units include sugars, which combine to form
; nucleotides, which form
; and amino acids, which form

a chair, a bed, and a toothbrush

explanation:

i was told this before by a teacher, so yeah

when it is at an intermediate population density

answer;

c. a tree whose roots are surrounded by wet sand.

explanation;

water stress is an important factor limiting the growth and productivity of forests.water stress is the most often cited cause of poor survival and growth of woody landscape plants.

-insufficient soil moisture is the most common form of water stress, but excess moisture that leads to poor soil aeration (hypoxia) can also result in reduced plant vitality. a tree whose roots are surrounded by wet sand would be least likely to experience water stress.