The presence of palpable lymph nodes.
Lymph nodes are relatively large in children, and the supperficial ones often are palpable even when the child is healthy.
Neither do I but I’m gonna go ahead and snatch the points
They all have different compositions of protons, neutrons, and electrons. This causes variety and makes atoms different so they can make up different substances
If you go on mc3.edu/admissions/applying-to-mccc/testing-and-assessment/assets/biology-placement-test.pdf page 11 it will tell you all the answers to your questions....
