Identify the correct statement/s from the following :
1. Cuscuta is a chlorophyllous endoparasite.
2. The human liverfluke needs only one host to complete its life cycle.
3. The life cycle of endoparasite is more complex due to their extreme specialiasation.
4. During the course of evolution the host bird's eggs have evolved to resemble the eggs of the parasitic bird.