Ten-Year-Old Delaney Is Helping Her Dad Put New Shingles on Her

question 82

Multiple Choice

Ten-year-old Delaney is helping her dad put new shingles on her playhouse in the backyard. Her dad asks her to put the shingles in order from longest to shortest so that he can vary the start of each row. She is able to do this because she

• A) can think abstractly.
• B) can perform seriation tasks.
• C) understands dual representation.
• D) understands conservation.

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Definitions:

Phospholipid

A lipid with two (hydrophobic) fatty acid tails and a (hydrophilic) phosphate group in its head; main constituent of lipid bilayers that form cell membranes.

Aqueous

Aqueous describes something that is related to, composed of, or dissolved in water.

Scanning Electron Micrograph

An image produced using a scanning electron microscope to examine surfaces of materials at high magnification.

Transmission Electron Micrograph

An image produced using a transmission electron microscope to explore the minute structures within cells and tissues.