Answer:
Nuclear fusion.
Explanation:
A protostar forms as mass increases. Nuclear fusion begins under high pressure.
The area that would be most appropriate for the patient is in the back hallway, in a quiet and private room. This is because if there is a sudden noise, it can cause or trigger a seizure in a patient with severe preeclampsia. Therefore, the best room replacement should be far form the elevator, nurse's station and the nursery.
Sexual production requires the sperm and egg cell
Answer:
These lungs are primitive and are not as evolved as mammalian lungs. Adult amphibians are lacking or have a reduced diaphragm, so breathing through the lungs is forced. The other means of breathing for amphibians is diffusion across the skin. To aid this diffusion, amphibian skin must remain moist.
Two common respiratory organs of invertebrates are trachea and gills. Diffusion lungs, as contrasted with ventilation lungs of vertebrates, are confined to small animals, such as pulmonate snails and scorpions.
Explanation:
Amphibians utilize gills for breathing early in life, and develop primitive lungs in their adult life; additionally, they are able to breathe through their skin.
