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d bonding propertys

explanation:

carbon can form so many different compounds not just with oxygen

answer; ///(b) it is composed of four protein chains and four heme groups;

by drinking easy

very easy

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.