The inactive non-conducting wood is called? A. Sap wood B. Heart wood C. Black wood D. Both a & b Right Answer: B. Heart wood Share : December 23, 2017 Hassan Ali Biology Total 0 Votes: 0 0 Tell us how can we improve this Mcqs? Captcha: + = Verify Human or Spambot ? Related Mcqs Check Below -Number of Leucocytes in a cubic millimeter of blood is?Chlorophyll a of photo system I is called?The cells that cling to an egg after ovulation are known as?