⟩ How many childrens affected with asthma in UK?
Asthma affects over 5 million individuals in the UK. Approximately 1 million children are affected.
Asthma affects over 5 million individuals in the UK. Approximately 1 million children are affected.
From which germ layer do blood cells originate? What are other organs and tissues made from that germ layer?
What are twins? Genetically what are the two types of twins that can be generated?
From which germ layer do the liver and the pancreas originate? What are other organs and tissues made from that germ layer?
What is polyembryony?
What are extra embryonic membranes?
What are the extra embryonic membranes present in vertebrates?
Are the extra embryonic membranes the same in all vertebrates?
How is the yolk sac formed? What is the function of the yolk sac?
Which is the extra embryonic membrane whose function is to store nitrogen wastes of the embryo? Is this function present in placental mammalian embryos?
Why can the allantois be considered an adaptation to terrestrial life?