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Do black widows have egg sacs without mating?
No, black widows need to mate in order to produce fertilized eggs that will develop into viable offspring. Without mating, the eggs will not be fertilized and will not hatch into spiderlings.
What happens if no fertilization occur?
In plants - no seeds, no fruit. In most animals - no baby. In some insects - male offspring. When these insects' eggs ARE fertilized you get female offspring!
Will multiple births when many egg cells are fertilized outside the body and then implanted produce identical or similar offspring?
Multiple births resulting from fertilized egg cells implanted outside the body, such as through in vitro fertilization (IVF), can produce either identical or fraternal offspring. Identical offspring arise when a single fertilized egg splits into two or more embryos, resulting in genetically identical individuals. In contrast, if multiple separate eggs are fertilized and implanted, each will develop into a different embryo, leading to fraternal offspring that are genetically similar but not identical.
What name is given to identical offspring's?
Identical offspring are referred to as "monozygotic twins" or simply "identical twins." They arise from a single fertilized egg that splits into two embryos, resulting in genetically identical individuals. This contrasts with "dizygotic twins," or fraternal twins, which develop from two separate eggs fertilized by two different sperm. Identical twins share the same genetic material, while fraternal twins do not.
What form of reproduction does a spoonbill have?
Spoonbills reproduce sexually through internal fertilization. A male spoonbill deposits sperm into the female's reproductive tract, where it fertilizes the eggs. The female then lays the fertilized eggs, which hatch into offspring.
What happens when there is NO male fish when the female is about to lay the eggs?
The eggs would not be fertilized, and no new offspring would be born.
How are crustacean eggs fertilized?
Crustacean eggs are typically fertilized externally. During mating, males transfer sperm to the female, often using specialized appendages. The female then releases the eggs into the water, where they are fertilized by the sperm. This method allows for a large number of eggs to be fertilized simultaneously, increasing the chances of survival for the offspring.
Do black widows have egg sacs without mating?
No, black widows need to mate in order to produce fertilized eggs that will develop into viable offspring. Without mating, the eggs will not be fertilized and will not hatch into spiderlings.
What happens if no fertilization occur?
In plants - no seeds, no fruit. In most animals - no baby. In some insects - male offspring. When these insects' eggs ARE fertilized you get female offspring!
Can an egg be fertilized more than once?
No. But you can get two eggs fertilized at the same time.
Will multiple births when many egg cells are fertilized outside the body and then implanted produce identical or similar offspring?
Multiple births resulting from fertilized egg cells implanted outside the body, such as through in vitro fertilization (IVF), can produce either identical or fraternal offspring. Identical offspring arise when a single fertilized egg splits into two or more embryos, resulting in genetically identical individuals. In contrast, if multiple separate eggs are fertilized and implanted, each will develop into a different embryo, leading to fraternal offspring that are genetically similar but not identical.
What is the difference between fertilized and embryonated eggs?
Fertilized eggs are eggs that have been fertilized by sperm, while embryonated eggs are fertilized eggs that have developed into embryos. In embryonated eggs, the embryo has started to grow and develop, while fertilized eggs are simply eggs that have been successfully fertilized.
What name is given to identical offspring's?
Identical offspring are referred to as "monozygotic twins" or simply "identical twins." They arise from a single fertilized egg that splits into two embryos, resulting in genetically identical individuals. This contrasts with "dizygotic twins," or fraternal twins, which develop from two separate eggs fertilized by two different sperm. Identical twins share the same genetic material, while fraternal twins do not.
Are all eggs fertilized?
No, not all eggs are fertilized. In animal reproduction, fertilization occurs when a sperm cell combines with an egg cell to form a zygote. Eggs that are not fertilized will not develop into offspring.
Explain the contrast of reproduction of bacteria with that of frogs?
Bacteria reproduce asexually through binary fission, where one cell divides into two identical cells. Frogs reproduce sexually, with eggs fertilized by sperm to create genetically diverse offspring. Bacteria reproduce quickly and in large numbers, while frogs have fewer offspring with more variation due to genetic recombination.
What will happen if one sperm will fertilized two eggs?
You have twins
How do you get nonidentical twins?
Non-identical twins happen when two eggs are fertilized at the same time. This happens when the mother ovulates twice, so she has two separate eggs that can be fertilized and develop into fetuses.
