Sperm in sentence

153 examples of Sperm in a sentence

I mean, if a female doesn't choose a particular male, or if she has the ability to store sperm and she simply has enough, then it makes more sense for her to spend her time doing other biologically relevant things: avoiding predators, taking care of offspring, gathering and ingesting food.

This is, of course, bad news for any male who has yet to make a deposit in her sperm bank, and this sets the scene for some pretty drastic strategies for successful fertilization.

They stab it anywhere in her body, and the sperm simply migrates through her hemolymph to her ovaries.

Now the female actually gets the last laugh, though, because she can actually manipulate her posture so as to allow the sperm of certain suitors better access to her ovaries.

And the reason is because in certain individuals, they can actually have genetic changes or mutations that are not passed down from the mother or from the father, but actually start brand new in them, mutations that are present in the egg or the sperm at the time of conception but have not been passed down generation through generation within the family.

While they're mating, the male is busy giving the female not just his sperm but also a nutrient-filled package called a nuptial gift.

There is gay marriage and sperm donors and there's intermarriage on an unprecedented scale, and this makes some of my more conservative cousins a little nervous, but I actually think it's a good thing.

And now, I need to choose a sperm donor."

When they do have sex, even their sperm is more interesting than human sperm.

There are some kinds of fruit flies whose sperm is longer than the male's own body.

And that's important because the males use their sperm to compete.

But they also compete after mating with their sperm.

They use these formidable devices like scoops, to remove the sperm from previous males that the female has mated with.

The males are very picky about who they mate with, because they not only transfer sperm during mating, they also give the female something called a nuptial gift.

The white blob is the sperm, the green blob is the nuptial gift, and the male manufactures this from his own body and it's extremely costly to produce.

So, the bigger it is, the better off the male is, because that means more time for his sperm to drain into her body and fertilize her eggs.

Since females only have X's to pass on in their egg cells, and males can give either an X or a Y in their sperm cells, the sex is determined by the father and the chance of producing a male or a female is 50/50.

Now, the queen will mate and then store sperm from the males.

If the queen uses the stored sperm to fertilize an egg, then that egg will grow up to become female.

And here's a male on the right, releasing sperm.

The same holds true for a sperm and many other microbes.

What makes the world of a sperm so fundamentally different from that of a sperm whale?

For example, because of its huge size, a sperm whale inhabits the large Reynolds number world.

Meanwhile, sperm live in a low Reynolds number world.

If a sperm were to stop flapping its tail, it wouldn't even coast past a single atom.

To imagine what it would feel like to be a sperm, you need to bring yourself down to its Reynolds number.

Picture yourself in a tub of molasses with your arms moving about as slow as the minute hand of a clock, and you'd have a pretty good idea of what a sperm is up against.

The few that are successful settle down in a suitable spot, lose their wings, and begin laying eggs, selectively fertilizing some using stored sperm they've saved up from mating.

If an egg, released during that month's ovulation, is in the tube, one sperm has a chance to fertilize it.

They block the sperm, disable sperm before they reach the uterus, or suppress ovulation.

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