Question
Fifty years on, most British politicians remain committed to the idea of a welfare state that includes free education, a National Health Service, and selective
Fifty years on, most British politicians remain committed to the idea of a welfare state that includes free education, a National Health Service, and selective financial support. They recognise, however, that people's needs have changed, along with their expectations of what governments can and should be reasonably expected to provide. For example, people now look to have greater control over their own lives and over the social and economic choices they make. Many citizens are clearer about their own rights, particularly as consumers, whilst governments regularly remind them of their responsibilities as citizens.
1. What are examples of nematodes?
2. Are nematodes exclusively parasites?
3. What typical morphological feature of nematodes differentiates them from platyhelminthes?
4. What are the morphological similarities and differences between nematodes and annelids?
5. Are nematodes diploblastic or triploblastic animals?
6. What is the main evolutionary innovation presented by nematodes? What is the advantage of that innovation?
7. Compared to platyhelminthes, which physiological problem was caused the cylindrical body of nematodes? How was that problem solved?
8. How does the excretory system of nematodes work?
9. How is the nervous system of nematodes organized? Where in their body are their neural cords located?
10. What type of reproduction occurs in roundworms? What is the typical feature of nematode sperm cells?
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