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What animal group has internal fertilisation but external development?
Wiki User
∙ 9y ago
Reptiles and birds are among the major groups of vertebrates that have internal fertilization and external development. Also included are monotremes and marsupials.
Wiki User
∙ 9y ago
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What is External structure of animals?
The external structures of animals protect the animal from harm to internal organs. An example of an external structure is the skin and fur on a bear. The skin protects the internal organs, and the fur protects the skin.
What animal has and fertilisation and implantation and gestation?
the tigers
How do animals fertilize plants?
Internal fertilization and external fertilization. Internal fertilisation means fertilize the egg inside the female's body. External fertilization is fertilize the egg after the female had lay it out. All mammals including platypus and spiny anteater do internal fertilization.
Which animal has internal fertilisation and internal development?
It's "fertilization" btw... To many to list... A good way to think of these, with of course, a few rare exceptions, is any animal that gives birth to a live baby or an egg that is hard or leather-like as soon as it's laid by the female, creating an instant protective barrier for the developing baby inside. (Different from externally fertilized eggs, which are often jelly-like, clear or translucent, and have an soft, pliable, easily permeated exterior so that the male can fertilize them simply by producing sperm on or near it and allowing gravity and the currents to spread it over the eggs permeable exterior.) - Mammals - horse, cows, pigs, humans, kangaroos, koala bears, elephants, dogs, cats, lions, tigers, bears, platypus, etc. - Reptiles- alligators, crocodiles, sea turtles, land turtles, tortoises, boa constrictors, pythons, etc. etc. - Birds - chickens, ducks, eagles, hawks, crows, robins, cardinals, egrets, vultures, etc. etc. N.B: No, fertilization is American spelling only, in Australia at least it is spelt fertilisation
An animal is an immediate automatic response to an external stimulus?
An animal's immediate automatic response to an external stimulus will vary depending on the circumstance. When the external environment is stimulated there is a response that is triggered.
Is a jaguar animal is a external or a internal fertilization?
Jaguar is a mamal toh obviously it will have internal fertilisation...it directly gives birth to young ones
What is the definition of fertillzation?
Fertilization (also known as conception, fecundation and syngamy), is the fusion of gametes to produce a new organism. In animals, the process involves a sperm fusing with an ovum, which eventually leads to the development of an embryo. Depending on the animal species, the process can occur within the body of the female in internal fertilisation, or outside in the case of external fertilisation.
Which animal uses each internal and external fertilization?
dog
Which external and internal cues stimulate an animal to migrate?
The external cues which stimulate an animal to migrate include climatic conditions and other surrounding aspects. As for the internal cues, this is mainly as a result of hormones that trigger the animal to respond in a certain manner.
What is internal development?
Internal development is when an animal's offspring develop/ grow inside the parent, usually the female, before it is given birth to.
What is External structure of animals?
The external structures of animals protect the animal from harm to internal organs. An example of an external structure is the skin and fur on a bear. The skin protects the internal organs, and the fur protects the skin.
Are panda bears internal or external?
Panda bears are considered to be both internal and external. Its digestive system which requires the panda bear to depend solely on bamboo for their main nutrients are considered to be internal. The external features of the animal include their senses and muscular system.
Could an animal have both an internal and external skeleton?
Arthropods use external skeletons (exoskeletons).
What evidence is there that land animal mainly carry out internal fertilisation?
Birds, mammals and reptiles carry out internal fertilization. This is evidenced by the fact that the eggs are stored internally during fertilization. The egg develops inside of the mother.
What animal has and fertilisation and implantation and gestation?
the tigers
What is the name given to a animal with a external skeleton?
A Vertebrate. An animal without an internal skeleton is called an Invertebrate.
What are the external and internal parts of carabao?
Carabao is a domestic water buffalo native to the Philippines. Its internal and external parts are similar to any large animal's. It has hair, skin, horns and such on the outside, and blood, bones and organs on the inside.
