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More baby.. Twins
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When are sperm and eggs produced?
In humans, males will start producing sperm at puberty. From then on the male can produce millions of sperm per day. The human female is born with all the eggs she will use in her life time. At puberty, hormones stimulate the ovaries to release one egg per month until menopause. Females do not produce fresh eggs during their life.
Are mutations more common in sperm cells or egg cells?
It depends on the age of the person. There are more mutations and defects in eggs as the woman ages. However, as men are constantly producing more sperm cells they will inevitably produce more cells that have mutations. The percentage of sperms cells that have mutations will increase as the man ages.
Why does a sperm have a tail and an egg doesn't?
Eggs do not move, but sperm do. The sperm's tail allows it to move more quickly to the egg.
Why do you need roosters?
You need roosters to fertilize the eggs, therefore producing more chicks.
Does the boy carry a sperm?
Yes, more than one, in fact.
What are the advantages and disadvantages of producing sexually?
An advantage is their offspring may be more adaptable to changes in the environment.
Do plants produce eggs or cones?
Plants produce eggs and sperm. In certain plants, like those of thephyla Coniferophyta (your basic pines), the eggs and/or sperm are contained in cones. Therefore cones are not sex cells, they are more like carriers of gametes.
Why does the eggs covering change after a sperm has entered the egg?
The outer layer of the egg changes to prevent more than one sperm from entering the egg.
What are the advantages and disadvantages of platypuses laying eggs?
a disadvantage is that there will be more platypuses and the advantage is that they will not be extinct.
What if one nation becomes more efficient than another nation at producing a specific product?
a comparative advantage
What is the name of the 2 human gametes?
The two types of gametes are sperm cells (male) and egg cells (female).
Why is there a greater number of sperm than eggs?
Since the time of the dinosaurs, many females, including human females, have lived with a set number of eggs that can be fertilized during her lifetime. Males continue producing sperm throughout much of their lives. This is because it is the male's job to increase the species and if females produced as many eggs as males do sperm, there would be an overpopulation problem.
