Which one of the following structures could be the effector in a reflex arc?

Here are the solutions to the questions: 6. Which one of the following structures could be the effector in a reflex arc? An effector is a part of the body, typically a muscle or a gland, that responds to a stimulus after receiving a signal from the central nervous system. A salivary gland secretes saliva in response to stimuli (e.g., smell of food), making it an effector. A cone cell is a receptor, detecting light. The brain and spinal cord are parts of the central nervous system, involved in processing and transmitting signals, not directly carrying out the response. The correct option is A. A. a salivary gland 7. The following is a diagram of the human female reproductive system. Which statement correctly describes the function of X? Structure X in the diagram points to an ovary. The ovaries have two primary functions: 1. Production of gametes: They produce female gametes (ova or eggs) through a process called oogenesis. 2. Secretion of hormones: They secrete female sex hormones, primarily estrogen and progesterone, which are crucial for the menstrual cycle, pregnancy, and the development of female secondary sexual characteristics. The correct option is A. A. hormone secretion and the production of gametes 8. The table shows the menstrual cycle of a woman during the month of September. Key: [blank square] = menstruation [shaded square] = ovulation (September 15th) Why can fertilisation not take place if sperms are released into the vagina on the 8 September? Ovulation occurs on September 15th. An egg is typically viable for fertilization for about 12-24 hours after ovulation. Sperm survival: Sperm can survive in the female reproductive tract for approximately 3 to 5 days. If sperm are released on September 8th, and they can survive for a maximum of 5 days, they would be viable until September 13th (8 + 5 = 13). Since ovulation occurs on September 15th, the sperm released on September 8th would no longer be viable by the time the egg is released. The correct option is B. B. Sperms can only survive in the female reproductive system for 3 or 4 days. What's next?