# PTE Reading FIB #22: Biological Mechanics and...

Reading: Fill in the Blanks #22 - Level 2 - Feeds Reading

> In the text below some words are missing. Drag word from the box below to the appropriate place in the text. To undo an answer choice, drag the word back to the box below the text.

Insects walk on water, snakes ____, and fish swim. Animals move with astounding grace, speed, and versatility: how do they do it, and what can we learn from them? How to Walk on Water and Climb up Walls takes readers on a wondrous journey into the world of animal ____. From basement labs at MIT to the rain forests of Panama, David Hu shows how animals have adapted and evolved to ____ their environments, taking advantage of physical laws with results that are startling and ingenious.

## Answer

Insects walk on water, snakes **slither**, and fish swim. Animals move with astounding grace, speed, and versatility: how do they do it, and what can we learn from them? How to Walk on Water and Climb up Walls takes readers on a wondrous journey into the world of animal **motion**. From basement labs at MIT to the rain forests of Panama, David Hu shows how animals have adapted and evolved to **traverse** their environments, taking advantage of physical laws with results that are startling and ingenious.

## Explanation

Blank 1 needs a verb for how snakes move, matching "walk" and "swim." "Slither" is the snake's movement. "Flinch" is a verb, but it means a quick, nervous jerk. Blank 3 follows "evolved to ___ their environments." "Traverse" means move across, which matches the theme of movement. "Enhance" would mean animals improve their surroundings.

## Hints

- Look at the words immediately surrounding each blank to determine the required part of speech.
- Consider the overall theme of the passage, which focuses on the physics of how animals move.

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