Q: Chemical signals are received by the target cell on what? Choices: - acidic proteins - inceptor proteins - parent proteins - receptor proteins A:
receptor proteins

(Question)
Q: What is said about the speed of rotation in systems that create tornadoes? Choices: - it is magnetic - it is unchanged - it is fast - it is slow A:
(Answer)
it is slow

Ques: Q: Birds have evolved a respiratory system that enables them to fly. flying is a high-energy process and requires a lot of this? Choices: - weight - nitrogen - adaptation - oxygen A:
Ans: oxygen

(Q).
Q: What part of the cell controls what enters and leaves? Choices: - nucleus - protein - organism - membrane A:
(A).
membrane

Ques:Q: Water follows where sodium ions lead, due to what process? Choices: - electrolysis - absorption - hydration - osmosis A:

Ans:osmosis

Ques: Q: What is the simple sugar that living things us to store energy? Choices: - nicotine - brown - chloride - glucose A:
Ans:
glucose