From 8 weeks and continuing until birth, a developing individual enters the
period.
o germinal
o
fetal
o
viability
o embryonic

embryonic

Explanation:

after 8 weeks, the fetus formed from the fertilization of the ovum by the sperm, a thin amniotic sac is formed round it, in which the fetus is connected to the mother via the abdominal cord.

b, acidosis

acidosis is when the human body attempts to return the bloods ph levels back to normal when the blood is acidic

the transfer of energy between two molecules spaced just nanometers apart plays a key role in many technologies, including photovoltaics, quantum information systems, lighting, and sensors, as well as in biophysics to measure nanometer distances and in photosynthesis. but an open question in this area is what effect, if any, the surrounding photonic environment has on this nanoscale energy transfer. by designing and performing a carefully controlled experiment to answer this question, scientists have settled the debate and found clues to improving the efficiency of many of the technologies that rely on this process.

explanation: