Answer: Senescent phase.
- A Senescent phase
- B a plain juvenile one
- C only the vegetative bit
- D some early embryo stage
Correct answer: A. Senescent phase
Explanation: After reproduction organisms enter the senescent (ageing) phase before death.
Structure of a mature flower. Image: LadyofHats (Mariana Ruiz), Public Domain, via Wikimedia Commons.
Concept context
Asexual and sexual reproduction, flower anatomy, pollination, fertilization, and seed development.