Answer:NH2 side group and COOH side group.
Explanation:
Are there any options you can give us?
X-ray crystallography, was the tool
The correct answer is option B
The correct pattern of flow of light information and the parts of eyes involved include the following -
Cornea
pupil
anterior chamber
lens
posterior cavity
retina
optic nerve
optic chiasm
Answer:
4) It allows the exchange of nutrients between the embryo and the mother, while at the same time filtering out harmful material.
Explanation:
The placenta is an organ present in all mammals. She is confirmed between the 6th and 8th week of pregnancy and has as main function the exchange of substances between the mother and the fetus. Among these substances are nutrients, gases and even secretions. The placenta also has the function of fighting infections and promoting immunity to the fetus, in addition, it can act as the lung, the intestine and the liver, while the fetus does not develop its organs.
