sperm cell
sperm *

Sperm cells can live inside a female's body for 4-5 days.

They can make sperm cells that are released into the water.

Perhaps she originated with the help of a male sperm cell.

And then there is the strange idea of growing human sperm cells in another species.

Sperm cells are very vigorous, as you can well imagine.

Let's say that a man has perfectly healthy sperm cells.

No virus was in or attached to the sperm cells.

Inside, they contain the largest sperm cells of any living creature.

With the Lewinsky dress, the first task would be to look for sperm cells.

In all, five hundred million swimming sperm cells came, enough for every available egg.

The genes stuck naturally to the outside of the sperm cells.

He has brought in models of sperm cells and the digestive system, "anything that gets the kids to see it."

It is important for the maturation of sperm cells in mammals.

In almost all species, the sperm cell bodies are elongate.

Once that chemical was in the sperm cells, they would glow blue under a laser light.

A plant sperm cell is non motive, it can not move by itself.

The egg can merge with one sperm cell that reaches it.

A few million little sperm cells wiggling around, to small to see without a microscope.

Unusually among animals, in most species, the sperm cells have two tails, rather than one.

However, the sperm cell does not contribute any genetic material to the offspring.

The sperm cell contains instructions that decide whether it will be a girl or a boy.

These cells are produced from the fusion of an egg and sperm cell.

One fly stock was able to make seminal fluid, but not sperm cells.

The first sperm cells are grown in a lab.

It involved them talking to the "exercising" sperm cells.

Every day a man makes between 50 and 500 million sperm.

Sperm - each one seems an individual in the way they move.

This man had a total of 100 sperm, maybe 150.

She also wants his sperm for her new top design.

A man's sperm can live in a woman's body for about two days.

In the most general sense, the nature of my research was sperm analysis.

He says the test "means that the sperm found in her was not his."

Sperm, however, can live for up to 5 days inside a woman's body.

But the study points to the possibility of an effect on sperm.

How the hell did your sperm get all over the dead girl?

The sperm is the very first building block of life.

After all, men have been able to bank their sperm for decades.

Sperm can survive in a woman's body for up to 72 hours.

There has to be a couple of sperm produced now and again.

The sperm on her face started really adding up now.

We're talking about a scientific analysis of her husband's sperm.

The first time I ever got sperm on my face was almost by accident.

When he got up the girl who caught his sperm was walking over to him.

The egg and sperm can move no matter what position your body is in.

How in the world was I going to be able to hold all the sperm they were feeding me!

Men who are going to have this treatment should bank their sperm ahead of time if they want to father children in the future.

They have different ways of making and releasing the sperm.

As his sperm continued to shoot into her small body.

You must swallow the sperm like a good little girl.

Like he was ever anything more than a sperm donor.