Question 19 (1 point) The image shown is that of what type of structures?
a) Mitochondrial nerve cells
b) Neuron and schwann cells
c) Neuron and endocrine cells
d) endocrine cells
Help Me Please!

the median of the data is 4.5.

this would be a math

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.