The Gap Between American Students' Performance and That of Students

question 29

Multiple Choice

The gap between American students' performance and that of students from other countries _____ as they move from elementary to middle to high school.

• A) widens
• B) shrinks
• C) stays the same
• D) There is no gap between American students' performance and that of students from other countries.

Comprehend the importance and mechanisms of communication in animal interactions.

Grasp the concept of sensitive periods in learning and development.

Identify the role of behavioral genetics in shaping animal behavior.

Understand how behavior contributes to survival and reproductive success.

---

Definitions:

Blade

(1) The thin, expanded part of a leaf. (2) The flat, leaflike structure of certain multicellular algae.

Palmately Netted

A leaf venation pattern where principal veins spread out from a single point like the fingers of a hand.

Pinnately Netted

Describes a leaf vein pattern where a main vein runs the length of the leaf and smaller veins branch off from the main vein to the leaf edges, resembling a feather.

Mesophyll

The inner tissue of a leaf, containing many chloroplasts, where photosynthesis takes place.