DNA or protein from a virus entered bacterical cells during infection
Answer:
sure, I'm bored too. So what do what to talk about?
The correct answer is: Endoplasmic reticulum.
One of the functions of the endoplasmic reticulum is transport of secretory proteins. Synthesized proteins are transported in vesicles to the Golgi apparatus.
Gastric chief cells have a high rate of enzyme secretion such as pepsinogen and gastric lipase. It is the cell also responsible for secretion of chymosin.
1 is b or 1/4 (I'd recommend checking a punnet square too)
Hollow bones are always a disadvantage because it means that they are less sturdy and easier for predators to break.