Egg (biology)
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- Egg can mean different things: Egg (biology) Ovum, the female reproductive cell Zygote, a fertilised ovum Cleidoic egg: the type of egg produced by amniotes...
An egg results from fertilization of an ovum. The egg is a container for the zygote. It protects the zygote, and feeds the embryo. The animal embryo develops...
Most eggs that are eaten by humans have a eggshell. there are multiple parts to the egg: the egg white, the egg yolk and various thin membranes, Every...
cleidoic egg (from Greek kleistos = closed) is the type of egg which reptiles and birds lay. Mammalian reproduction has evolved from laying cleidoic eggs to...- trying to fertilize an ovum A sperm cell fusing with an ovum Cleidoic egg Egg (biology) Fertilisation Pollination Sperm Zygote "The Ovum, Gray's Anatomy of...
Spawn is the eggs of some aquatic animals. Laying those eggs is called spawning. Animals that live in water, such as fish and amphibians, reproduce by...
A clutch is a group of eggs. When people say "clutch," they mean living eggs that have not hatched yet. Usually, they mean eggs laid by the same mother...
Parasites will live on the animal and may lay their eggs on them. This short article about biology can be made longer. You can help Wikipedia by adding...- Embryology (category Biology stubs)fertilisation of an egg, and continues until the foetus stage. A broader term, developmental biology, covers the whole period of growth from the egg to adult life...
Incubation (redirect from Egg incubation)is when oviparous (egg-laying) animals sit on their eggs to hatch them. It also refers to the development of the embryo in the egg under good environmental...- Eggshell (section Reptile eggs)egg and of some forms of eggs with soft outer coats. It is a main character of the cleidoic egg, which allows amniotes to breed on land. Worms eggs present...
fertilisation – the development of the embryo, starting from the zygote (fertilised egg). Organisms can differ drastically in the how embryo develops, especially...
insects. Insects grow by metamorphosis. In incomplete metamorphosis, an insect egg hatches, and a small nymph comes out. The nymph usually looks just like the...
Theria (category Biology stubs)mammals: the ones that give birth to live young, and not by using a shelled egg. The Theria are divided into two groups (infraclasses): Metatheria and Eutheria...
Embryo (category Biology stubs)An embryo is the earliest stage in the development of a fertilised egg (the zygote). It is the term used for any animal or plant, from the first cell...
Sperm (category Biology stubs)of making and releasing the sperm. In all cases the sperm meets with the egg of the female and together they grow into a new organism. The name sperm...
Ovipositor (category Biology stubs)female does not use it for egg-laying. Wiki Commons has media related to Ovipositor. This short article about biology can be made longer. You can...
Ovule (category Biology stubs)means "small egg." The megagametophyte (also called the embryo sac in flowering plants) is inside the ovule. The megagametophyte produces the egg cell. "In...
Nauplius (category Biology stubs)nauplii) is the first larval form of most crustacea. It develops from the egg, and may be followed by later stages before the adult form is reached. In...- In vitro fertilisation (category Biology stubs)In vitro fertilisation (IVF) is a way to let sperm fertilise egg cells outside of the womb. IVF is used so that infertile women may still have children...
- (UK) IPA (key): /ˈzaɪɡəʊt/ (US) IPA (key): /ˈzaɪɡoʊt/ (countable) (biology) A zygote is a fertilized egg cell.