I believe it is A. Primary succession starts with plants and rocks.
I think the answer is A or D
Answer:
<em>True</em>
Explanation:
Methamphetamine is a drug commonly known as Desoxyn crank or crystal. It is a stimulant and speeds up body's systems. It is the second most popular drug in the world and is classified as Schedule Two drugs in US. It is often illicitly used as recreational drug and is used as short term treatment for ADHD. One consumed then it can be detected upto three months. How long it is detectable in human body vary according to the test used.
B. Because your asking other students who are trying to figure it out themselves
Answer:
The two structures used in membrane transport are 1 integral membrane protein 2 peripheral membrane protein.
Explanation:
The various protein present in the plasma membrane help the later to exhibit its function to transport various solute molecules and ions across the membrane.
Integral membrane protein such as Na+K+ATPase helps in the transport of Na+ ions inside the cell and K+ ions outside the cell against their concentration gradient.
Peripheral membrane proteins are present in water soluble region of either extracellular region or cytoplasmic region or both.Peripheral protein also helps in the transportation of various solute molecules .