b. the students need more mitochondria for more energy in order to build more muscle mass .
All the inhabitants of a particular town, area, or country.
It may be a lake, a marsh, a spring or a glacier. This is where the stream starts. The source is the farthest point of the river stream from its estuary or its confluence with another river or stream. ... The farthest stream is called the headstream or headwater.
Answer:
It could be a bird - peacock
Father: XY
Mother: XX’
The father is normal, while the mother is a carrier.