The child contains or is able to recieve both type a and b. the child obtained this from her parents.
All you would have to do is sum them up cause their going the same direction.
Go to reddit, r/askteengirls or r/teenagers
You'll get better answers there
The answer is single opening. The gastrovascular cavity varies from the alimentary canal in that only the gastrovascular cavity has only a single opening. In addition, an alimentary canal has two openings and food moves over it unidirectional. The gastrovascular cavity is a construction establish in primitive animal phyla. It is accountable in cooperation with the digestion of food and the transportation of nutrients all over the body.
Answer: they have to maintain homeostasis, so they remove waste to do so..
