To improve aerobic fitness someone should workout in which zone to receive the most aerobic fitness benefits on a regular basis? A.1
B.3
C.2
D.5

The embryonic stage is the most critical stage of fetal development. true false

Which of the following represents a difference between viruses and viroids? a) viruses infect many types of cells, whereas viroids infect only prokaryotic cells. b) viruses have capsids composed of protein, whereas viroids have no capsids. c) viruses have genomes composed of rna, whereas viroids have genomes composed of dna. d) viruses cannot pass through plasmodesmata, whereas viroids can.

Write 2 paragraphs why is sugar so addicting