A. croaking of a male toad
B. basking in lizard
C. spines in porcupine fish
D. huddling together of penguins
Correct Answer:
Option C – spines in porcupine fish
Explanation
The porcupine fish has spines on its body. The fish sucks in water and swells up to make the spines stick out. This transforms it from a small mouthful into an uneatable ball of prickly spines. Its flesh also contains a deadly poison as an extra defense.
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![A football is kicked at an angle of 45° to the horizontal over a defense line up with a velocity of 15ms−1. Calculate the magnitude of the horizontal velocity of the ball at its highest point [Neglect friction, g = 10ms−2].](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "A football is kicked at an angle of 45° to the horizontal over a defense line up with a velocity of 15ms−1. Calculate the magnitude of the horizontal velocity of the ball at its highest point [Neglect friction, g = 10ms−2].")
