An F1 hybrid annual is considered to be better than inbred plants because

• A. They are cheaper to produce
• B. Hybrids are more vigorous
• C. They resist all pests
• D. They mature faster

Answer: (B)

An F1 hybrid shows heterosis, a boost in performance that occurs when two distinct inbred lines are crossed. The first-generation offspring often grow more vigorously, yield more, and develop more uniformly than either parent, which is why these hybrids are considered better than inbred plants. The idea is not that they are cheaper to produce, immune to all pests, or guaranteed to mature faster—these can vary and aren’t reliable traits of all hybrids. The key takeaway is the general increase in vigor and performance that heterosis provides.