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What animal group has internal fertilisation but external development?
Most of the fishes, All amphibians, reptiles, birds and a very few mammals have external development.
Is fish development internal or external?
Fish development can be both internal and external depending on the species. Some fish, like most bony fish, have external fertilization where eggs are fertilized outside the female's body. Others, like some species of sharks, exhibit internal fertilization where fertilization occurs inside the female's body.
What are the advantages of internal development compared to external development?
I remember a really great explanation in an old biology textbook, but I no longer have it and I'm having trouble finding a good answer for you online. One big advantage is that because the offspring are carried inside the mother and not in eggs, they are mobile and the mother can protect them from predators.
What is the external marking between the two testes?
The external marking between the two testes is called the scrotal raphe, which is a line of tissue that runs from the bottom of the scrotum to the perineum. It marks the fusion point of the two halves of the scrotum during fetal development.
Is the reproduction of the frog external?
the reproduction of frogs are external fertilization. By Crystal
Is a clown fish internal or external development?
External
Is bearded dragons development internal or external?
its internal
Is fertilization external in most Arthropods?
External fertilization and development
When was Taiwan External Trade Development Council created?
Taiwan External Trade Development Council was created in 1970.
Do bees use internal or external development?
External, because they lay eggs.
What is Taiwan External Trade Development Council's motto?
Taiwan External Trade Development Council's motto is 'Cooperation, Commitment, Concentration, Creativity'.
Do donkeys have internal or external development?
internal
Do seahorses have internal or external development?
lll
When can the external reproductive organs can be distinguished?
external reproductive organs can be distinguished by the 12th week of development
What are the internal and external factors that affect child development?
There are many internal and external factors that affect child development. One internal factor is the genetic makeup of the child.
What animal group has internal fertilisation but external development?
Most of the fishes, All amphibians, reptiles, birds and a very few mammals have external development.
Is development of economy internal or external phenomenon?
development of an economy is an internal phenomenon as it comes from within.
