Jay and Justin Each Have a Stick of Gum

question 388

Multiple Choice

Jay and Justin each have a stick of gum. Eight-year-old Jay stretches his stick until it is much longer. Five-year-old Justin begins to cry because he thinks that Jay has more gum than he does. Justin lacks

• A)animism.
• B)object permanence.
• C)conservation.
• D)egocentric thought.

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Definitions:

Cotransport

A membrane transport mechanism that simultaneously moves two substances across a cell membrane in the same direction, one typically driving the movement of the other.

Transpiration

The process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapor and is released into the atmosphere.

Translocation

The process in plants where nutrients and sugars produced in the leaves are transported to other parts of the plant through the phloem.

Phloem

The vascular tissue in plants responsible for the transport of sugars and nutrients from the leaves down to the roots.