From a scientific point of view, what are the advantages of studying extinctions as a consequence of historic human action?
a. Historic information helps scientists to date the start of human impact.
b. The effects of human action are independent of nonhuman effects.
c. Scientists always know the "natural state" of a system prior to human impact.
d. The strength of human impact is easy to measure.
e. A and B.
A
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A protein that is destined to reach the plasma membrane is making its way through the Golgi. At that moment, a drug was added to cells, blocking trafficking at the trans face of the Golgi. As a result, what would happen to the protein?
A. The protein would continue on to the cell surface. B. The protein would be stuck in the Golgi. C. The protein would return to the endoplasmic reticulum via the trans face of the Golgi. D. The protein would exit the Golgi, but instead be targeted to the cytoplasm.
Cell theory is one of the foundations of biology. What are the tenets of the cell theory? Check all that apply.A) All organisms are made up of more than one cell.B) All cells have the ability to move.C) Cells carry genetic material passed to daughter cells during cellular division.D) Cells arise from other cells through the process of cell division.E) Organisms are formed through spontaneous generation.F) All living organisms consist of cells.
What will be an ideal response?
________ are to set points as leaky barrels are to settling points.
Fill in the blank(s) with the appropriate word(s).
_______ in the liver may play a role in producing the enzymes that help detoxify drugs.
A) mitochondria B) rough endoplasmic reticulum C) smooth endoplasmic reticulum D) Golgi apparatus