The presence of a thick, rich layer of humus in the soil profile would indicate an ecosystem that
Owould have similar flora and fauna to the tundra
has very low productivity
is relatively warm and moist
does not cycle nutrients

i am positive it is c. condensing but i may be wrong

label a cell membrane

label b cytoplasm

label c ribosomes

label d dna

the membrane forms the outside of the cell

cytoplasm is the liquid within

ribosomes are the components within that distribute rna

the dna is the genetic make-up

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint