Run-on, Fragment, or Correct?

Tigers' stripes not only on their fur but on their skin also.

My friend Jason, who is afraid of all reptiles.

Dogs’ nose prints as unique as human fingerprints.

Over the past several weeks prepared for the SAT.

You can tell a turtle’s gender by the noise it makes males grunt and females hiss.

I'm going to leave early because I need to study but I will be back later.

Having went to the store to buy food for dinner.

My brother wasn't home from school so I decided to eat the last piece of cake.

There are one million ants for every human in the world.

Ostriches can run faster than horses, and the male ostriches can roar like lions.

The storm blew our satellite dish off the roof and knocked a tree onto my car.

Jeffrey was mad and he ran off into the woods.

Summer went to the store, she bought a candy bar.

The brown and green toad jumped out of my backpack and hopped all around the gymnasium.

I have no idea how to play this game because it didn't come with directions.

The math test was very short, there were only ten questions on it.

In 1965, Bigfoot was officially put on the endangered species list in Russia.

Sharks kill fewer than 10 people per year while humans kill about 100 million sharks per year.

Although Evan studied all night for the test, he still failed the calculus test.

Before you print out your essay and turn it in.

A cheetah from zero to 60 miles per hour in three seconds.

Crossing the street is dangerous if you don't look both ways before you cross.

When Chris went to the park to sit on the swings.

Sea otters hold each other’s paws when they sleep so they don’t drift apart isn't that sweet?

There was complete silence around me I still couldn't fall asleep.

Indiyah enjoys going to the movies, but Haleigh prefers to stay home.

It's hard to sneak up on a frog they can see in all directions at once.

Flamingos pink because shrimp is one of their main sources of food.

The thunder frightened the horse, therefore, they ran to the barn.

Even if a snake has its eyes closed, it can still see through its eyelids.