Well, they aren't. The penis, scrotum and clitoris (females) are the only sexual structures outside the body. Of these, the only reproductive structure is inside the scrotum, and yes, it is best outside the body because sperm will die if not kept cool. But all female reproductive organs are inside the body.
gametes
The groin area in humans is located between the abdomen and the thigh. It includes the reproductive organs and the inguinal region where the legs meet the torso.
A major function of the human reproductive system is to produce gametes (sperm and eggs) that can unite to create a new individual through sexual reproduction. Additionally, the reproductive system is responsible for the production of sex hormones that regulate development and secondary sexual characteristics.
Haploid refers to a cell that has half the usual number of chromosomes, typically found in reproductive cells such as eggs and sperm. In humans, haploid cells contain 23 single chromosomes. When two haploid cells combine during fertilization, they form a diploid cell with a full set of chromosomes.
The human reproductive system is more complex and specialized compared to that of a worm. Humans have distinct reproductive organs such as the ovaries and testes, while worms have simpler structures for reproduction. Humans also have internal fertilization, whereas worms typically reproduce externally.
Reproductive conflict and the separation of reproductive generations in humans
Almost all plants benefit humans
they benefit humans by eating chicken breats
Humans are mammals
In humans a male reproductive cell is the sperm, while the female reproductive cell is the egg.
Like humans, most animals are either male or female, although some are hermaphroditic, having reproductive characteristics of both genders.
Yes.
I think it is the same as humans.
A Pig
It can have sex with its self and have babies and can fertilize its own egg.
Not really. In symbiosis, each partner derives benefit from the partnership. While rats benefit from humans, humans do not benefit from rats.
humans are animals and they benefit from eating cows. humans also benefit from drinking the milk of cows.