Sentences with phrase «released eggs and sperm»

The large amounts of released eggs and sperm from the spawning provide a plentiful source of protein rich food for the whale sharks.

The placement of the eggs is suggestive, the researchers report in the March issue of Geology: They hypothesize that trilobites released their eggs and sperm through a genital pore somewhere in the head — much like modern horseshoe crabs do today.

At 10 p.m., when water is around 24 °C (75 °F), Acropora digitifera corals in the southernmost part of Japan start to release their eggs and sperm, known as gametes, exactly at the same time in a process called synchronized spawning.

Corals release their eggs and sperm based on photosynthetic cues provided by moonlight.

Tube worms release eggs and sperm, typical of most marine invertebrates, which form a planktonic larvae.

Not exact matches

Each November in the days following the light of a full moon, coral colonies across the reef — spanning an area larger than the state of New Mexico — release millions of egg and sperm sacs within nearly minutes of one another.

Much has been made about the claim made by Barr Pharmaceuticals that Plan B «may also prevent fertilization of a released egg (joining of sperm and egg) or attachment of a fertilized egg to the uterus (implantation).»

Rather, the pills delay ovulation, the release of eggs from ovaries that occurs before eggs are fertilized, and some pills also thicken cervical mucus so sperm have trouble swimming.

Some female methods of birth control (including the birth control pill / patch / shot and IUDS) do not only attempt to prevent an egg from being released or stop the sperm from reaching the egg.

Implantation Bleeding: This is when you have released an egg and it has been fertilized by a sperm, making a bundle of cells known as a zygote.

Fraternal Twins are two eggs which have been released, which are then fertilized by two sperm and Identical Twins are formed from one egg and one sperm that splits to produce two babies, TWINS!

Johnson v. Calvert was a case concerning a surrogate mother's refusal to release the child she gave birth to, even though it was not related to her biologically (having been conceived with the intended parents» sperm and egg).

Ovulation is when a mature egg is released from the ovary and pushed down the fallopian tube and is ready to be fertilized by a sperm.

The Dawn of the Deed By John A. Long When paleontologist Long spotted a set of tiny bones inside a 380 - million - year - old fossilized fish, he not only discovered the oldest known embryos, he also found the earliest known evidence of animals copulating directly, rather than releasing sperm and eggs to meet in the open sea.

Copper IUDs and others without hormones prevent pregnancy by releasing ions that create a sperm - and egg - killing environment in women's reproductive tracts.

Most corals reproduce by releasing sperm and eggs into the ocean during brief annual spawning events.

If the female is pleased with her partner, the couple will reproduce by releasing their sperm and eggs simultaneously.

Most spawning corals are hermaphrodites that release large bundles of eggs and sperm.

During breeding, the newts are very active and release a lot eggs, sperm and DNA into the water.

This is different from coral fertilization, in which numerous mature eggs and sperms are released simultaneously and fertilized in the water.

In gymnosperms, wind deposits a pollen grain on an exposed egg cell, and then the pollen tube — growing at the slow rate of 20 micrometers an hour — releases an enzyme that destroys any tissue blocking the sperm's entrance into the egg cell.

Another coral gene responds to a full moon, triggering the simultaneous release of millions of eggs and sperm along a reef.

In other frogs, females usually lay eggs during the male - female embrace (amplexus) and males simultaneously release sperms that fertilize the eggs during this process.

Moreover, endocrine disruptors render sperm less sensitive for progesterone and prostaglandins — two important hormones released by cells surrounding the egg.

They showed that endocrine disruptors — applied at concentrations measured in body fluids — directly open CatSper and, thereby, increase calcium levels in sperm, change their swimming behavior, and trigger the release of digestive enzymes that help sperm to break through the egg coat.

The bright flash occurs because when sperm enters and egg it triggers calcium to increase which releases zinc from the egg.

Males try to fertilize more eggs by releasing more or faster - swimming sperm into the female, and / or by plugging her reproductive tract when they're through.

And those led to the modern understanding that many corals reproduce only once or twice a year, in coordinated mass releases of eggs and speAnd those led to the modern understanding that many corals reproduce only once or twice a year, in coordinated mass releases of eggs and speand sperm.

Harrison would take a few mature corals to the lab and convince them to release sperm and eggs in aquarium tanks.

The sperm must be able to ascend through the cervix, uterus and fallopian tubes, arriving at the same time that a woman has ovulated (released an egg).

The hormone thickens cervical mucus, making it harder for sperm to reach an egg, and it may also stop ovulation, so no egg is released.

This is that point in the middle of your cycle when high estrogen and rising progesterone levels prompt an egg to be released from your ovary and travel down the fallopian tube, where it waits to be fertilized by sperm.

Timed with the full - moon of November, eggs and sperm are released in a mass coral orgy.

Once a year, coral release millions of packets of egg and sperm cells that appear as massive underwater clouds of white and pink upward moving «snowfall».

During a spawning event, female and male fish rise in the water as groups, releasing millions of eggs and sperm.

The birth control pill, for example, prevents pregnancy in three ways: The pill thickens the cervical mucus to make it more difficult for sperm to reach the egg; it suppresses ovulation by mimicking pregnancy - level hormones in the body, preventing eggs from being released from the ovaries; and finally, as a fail - safe, the pill makes the lining of the uterus inhospitable to any fertilized egg that might slip through.

An egg lives for about 1 day after it's released (ovulation), and sperm can live in the body for about 6 days after sex.

In addition, IUDs cause inflammation in the uterus, which leads to the release of fluids that impair the function of both eggs and sperm.

Hormonal IUDs work by releasing small amounts of the hormones that thicken cervical mucus, which prevents sperm from reaching an egg and may also prevent ovulation, or the release of an egg from the ovaries, according to Planned Parenthood.