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.
Animals that undergo external fertilization include many fish, amphibians, and aquatic invertebrates. Species like salmon, frogs, and sea urchins release eggs and sperm into the water, where fertilization occurs outside the body. This method often requires moist environments to prevent gametes from drying out and to increase fertilization success. visit our website: www. sathayatravels .com/about
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
Yes.
dogs have internal fertilisation which means that thier babies grow inside of them and they do not lay eggs