Larger vessels are similar to veins

Larger lymphatic vessels are similar to veins.

Lymph vessels are the vessels which are structurally similar to the blood vessels. They filter and carry the lymph back from the tissues into the circulatory system unidirectionally.

One of the characteristic feature of the lymphatic vessels that make them resemble the veins is the presence of the valves in them. The presence of the valves prevent the blackflow of the lymph. The other similarity between the lymph vessels and the veins is the layers present in them. Similar to a vein, a lymph vessel is also made up of an outer layer called the tunica adventitia or the tunica externa, a middle layer called the tunica media and an inner layer called the tunica intima.

Thus, the presence of the three layers and the valves make the larger lymphatic vessels resemble the veins.

parasites can detrimentally affect their host, but also must not allow their host to die before they can complete their life cycle. some parasites have complex life cycles with many different hosts, and have had to find ways of persisting in many different environments during the change from one host to another. ectoparasites live outside the body of the host, and can more easily  disperse, but are  more exposed to predators, parasites, parasitoids. endoparasites live inside the body of the host, and are therefore protected from the outside environment. but they can be  attacked by the host's immune system. they have therefore developed  mechanisms for dispersal such as  complex life cycles.

due to the fact that it skipped a generation we can tell it is definitely not a dominant trait, therefore it must be recessive. i think this is right let me know!

explanation: