1.27 Below are tissues found in the walls of blood vessels…

1.27 Below are tissues found in the walls of blood vessels. Which tissues are present in the walls of all blood vessels?   1.    Collagen 2.    Elastic 3.    Endothelial 4.    Smooth muscle (1)       A) 1, 2, 3 and 4   B) 3 only   C) 2 and 3 only   D) 1, 3 and 4 only  

1.23 Which of the following occurs during DNA replication,…

1.23 Which of the following occurs during DNA replication, transcription, and translation?     1.    Condensation reactions occur to form a polymer 2.    ATP provides energy 3.    Hydrogen bonds form between purine and pyrimidine bases (1)       A) 1 and 2 only   B) 1, 2 and 3   C) 2 only   D) 3 only