Plant Growth 50
40
Growth (cm)
20
10
0
8
40
16 24 32
Temperature (C)
Which of these would be the best conclusion regarding the experimental results shown?
® This species of plant grew best between 18°C and 26°C
Plants will not grow above 26°C
The tallest this species of plant will ever grow is 50 cm
The ideal temperature for all plant growth is 26°C

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.