Fertilisation in kangaroos is an internal process, not external. This is the case with all mammals.
Internal
Homeostasis is internal. It refers to the body's ability to maintain a stable internal environment regardless of external influences.
Some examples of animals that undergo external fertilization include fish, amphibians, and many invertebrates such as sea urchins and corals. External fertilization occurs when eggs and sperm are released into the environment where they meet and fertilize outside of the body.
Integumentary system covers both internal and external body structures.
Internal
external
internal
The 2 fertilisation's are external fertilisation, or internal fertilisation. External fertilisation is the type frogs do.
internal is in and external is out fertilisation
internal
VERY INTERNAL
internal
i think internal
Yes
arthropods usually have external fertilization
dogs have internal fertilisation which means that thier babies grow inside of them and they do not lay eggs
Yes.