Which of the following scanning techniques measures glucose consumption is an indicator of brain activity?
a. ct b. mri c. fmri d. pet e. eeg

d. PET is the correct answer.

Explanation:

PET stands for positron emission tomography it is a scanning test used to detect diseases in the body and it checks how the tissues and organs inside the body are functioning.

PET scans recognize the areas within the body that absorb sugar, so by PET scanning techniques measure the brain's glucose consumption as it is very effective tissue in the body that absorbs sugar.

A PET scan uses the radioactive drug to identify the difference in healthy and diseases tissue. The most common radioactive drug used is fluorodeoxyglucose.

answer:

the water molecules are transferred from the roots to the stem or top parts of the tall tree because of important properties of water which are adhesion, cohesion and capillary action. cohesion is the property of water molecules keeps water molecules in a combined state by sharing of bonds between them at the atomic level. adhesion allows the interaction of water molecules with other substances or substrate. adhesion will cause the attachment of water molecules to the wall of the vessel (xylem) of the plant. capillary action occurs when the adhesive force to the vessel wall is stronger than the cohesive force between water molecules. capillary action mimics the transfer of water from a tube or pipe. in this way water utilizes its property to transfer water from down to top level of the plant.