Answer:
Lungs and Endoskeleton.
Explanation:
Gills helps it live in water, and Scaly skin doesn't really apply
Answer:
no problem
Explanation:
but you should probably ask any questions that you have in order to get help
Answer:
Thermometer
Explanation:
I did the test and that was the only thing I could think of
Answer:
The correct answer is - the placenta, the site of exchange of materials between the mother and the fetus.
Explanation:
In the given diagram there is a representation of a human embryo developing in the uterus. Different parts are numbered and the number three represents the site of exchange of materials between the mother and the fetus and this organ is called the placenta. It is the organ that develops between fetus and uterus during pregnancy that allows substances such as nutrients, to diffuse from the mother's blood to the fetus and connected by the umbilical cord.
