Sort each description according to whether it refers to nonvascular or vascular plants.
can be almost any size
Nonvascular Plants
Vascular Plants
rely on diffusion
have specialized tissues
usually small in size
lack true roots and stems
divided into three groups

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.