Answer:
The answer should be C: mostly in the 20th century
Explanation:
Answer:
Not sure about this, but I believe it's pressure. I'm not sure what exactly you're asking. I hope this helps!
Explanation:
The higher the pressure, the less volume the gas has.
It depends on the tempature but at 100% that means it is raining so D.
Answer:
Root geotropism provides multiple advantages to a plant's vitality and survival
Explanation:
Answer:
Answer is D - cAMP.
Explanation:
cAMP is a small molecule that functions as an intracellular signaling molecule - a second messenger. The first messenger would be the thing that activated the GPCR (e.g. a hormone). The GPCR is a signal transducer (converts extracellular signal to intracellular signal). Once activated, the GPCR activates adenylate cyclase which can be called a signal effector - it is an enzyme that produces cAMP.
