Problem: How does the next paragraph end?

How to identify male and female guppies
Check for a slender or round body shape.
The body shape of male and female guppies is very different and distinctive. Male guppies usually have very slender, long bodies, while female guppies are usually a lot rounder and bigger than the males, sometimes twice as big as a male guppy.
A: If your female guppy is pregnant, her body may look boxy or stuffed and even lumpy. She may grow even rounder as she gets closer to birthing her young.

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How to harness your emotions
Understand the purpose of your emotions.
Emotions help you adapt and survive as you navigate an ever-changing world. Emotions alert you, prompting you to pay attention to the situation at hand.
A: Uncomfortable emotions like fear, anger, sadness, or anxiety help humans address threats, social situations, and loss. Anxiety, for example, can serve the purpose of preparing for a future threat.

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Several walking or horseriding individuals walk by the foreground while the camera focuses on a group of people in the background. A gate opens and a horseriding man chases a cow. the man
A: lassos and secures the cow.

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How to concentrate at university level classes
Avoid talking to strangers during lectures and tutorials.
While it might be nice meeting new people and discovering their interests, there are better times for doing this than during teaching sessions when you need to be concentrating.
Avoid talking to your friends.
A:
They're your friends and they'll still be there after the lecture/class/tutorial. In fact, they might start getting on your nerves if they're around too much over-analyzing all the work in front of all of you.