internal
Except for a brief courtship and mating period, desert tortoises are solitary animals.
Internal.
It is internal because spider monkeys are mammals.
An ostrich lays eggs after the mating ritual. Therefore, the fertilization process is internal.
Desert spinny lizards do not have obvious external characteristics to distinguish between males and females. To determine the sex of a desert spinny lizard, you would typically need to examine internal reproductive organs. Alternatively, observing behavior during mating season may provide clues about the sex of the lizard.
Internal
Internal. The queen mates with several drones on a mating flight about a week after she emerges from the pupal cell. The sperm she receives is stored in an organ called the spermetheca and is sufficient to fertilize her eggs throughout her whole laying life.
External fertilization allows for increased genetic diversity and is more energy-efficient as it does not require the production of gametes for mating. Internal fertilization provides greater protection for the developing offspring and allows for parental care and support.
Internal. A virgin queen goes out on a mating flight about 5 days after she hatches and mates with several drones (male bees) which fertilizes all the eggs that she produces throughout her life. She never has to mate again.
Internal, as do most mammals. Typically, it takes 3 porpoises -- the mating couple and one other to lift them up so them can breathe. Porpoises also live-nurse their young.
The mating itself is a type of external fertilization, but the mating position is called amplexus
No, blackbirds do not use external fertilization; they reproduce through internal fertilization. Female blackbirds lay eggs after mating with a male, and fertilization occurs inside the female's body. The female then nests and incubates the eggs until they hatch.