reproductive system of amphioxsus
Answers
Since amphioxus does not have the pituitary gland or its homolog, the system is composed of the nerve cord and the gonad; neuroendocrinal substances such as thyrostimulin and vasotocin might directly control reproductive function.
Answer:
the answer Male and female amphioxi are identical in outward appearance and differ internally only in the nature of the gonads, or reproductive glands, which form in rows on the wall of the atrial cavity. Breeding takes place several times a year in tropical regions but only once in temperate areas. Sacs containing eggs or sperm burst and discharge their contents into the water through an opening on the underside of the body. Eggs are fertilized in the water, and after about two days microscopic ciliated larvae develop from the fertilized eggs. The larvae are carried with ocean currents for several weeks before metamorphosing into juvenile amphioxi and taking up life in sandy sediments.