Proglottids are segments in cestodes that contain bot the male and female reproductive organs. These segments go ahead to make eggs and then dettach form the worm. They are excreted and become agents of infection on the next hoist. Proglittids formed near the neck of the worm are immature while those at the tail end are literally bags of mature eggs.
The scolex is the head of the worm that is attached to the host. It is also the part that ‘sucks’ nutrients from the host. It has hooks that it uses to anchor itself in the host. In some species, rather than hooks, there are suction-cups that use suction for anchorage.
If student’s data does not support her hypothesis, then the next MAJOR step would be to "<span>change the hypothesis" although more trials should be done first. </span>
Ethical concerns about the development and use of biotechnology include all of the following except <em><u>concern about the development of new weapons.</u></em>
