sperm and eggs/ovaries
Some organisms reproduce by sexual reproduction (such as horses, cattle, donkeys etc.) and some others reproduce asexually (such as bacteria) So it depends on what organisms you are talking about.
There are two ways of reproduction, asexual and sexual reproduction. Similar organisms reproduce when organisms reproduce asexually because only one parent is involved in this type of reproduction and so there is no mixing of genetic material and exact copy of parent reproduces. Common methods of asexual reproduction are: budding, binary fission, multiple fission, parthenogenesis, etc.
Star fish reproduce by splitting. They are asexual so they don't need a partner to reproduce.
Organisms in the phylum chordata reproduce sexually, with internal fertilization being common. In the phylum arthropoda, organisms reproduce through both sexual and asexual means, depending on the species. Organisms in the phylum mollusca reproduce sexually, with most species having separate sexes.
Shrimp are animals, so they reproduce sexually
The number of organisms will double every generation in asexual reproduction. So, the number of organisms after 30 hours will reach 2^30 times more than the initial number.
asexual reproduction only requires one male or female.
Organisms that reproduce asexually include bacteria, some plants, and fungi like yeast. Organisms that reproduce sexually include humans, animals, and many plants. Some organisms have the ability to reproduce through both sexual and asexual means, like certain types of jellyfish.
Yes, prokayotes undergo regeneration. They are single-celled, so they reproduce asexually. Asexual reproduction is a part of regeneration in some organisms.
Asexual reproduction involves only one individual - so if dogs where capable of asexual reproduction then the off spring would be an exact copy of the adult - this is how one cell organisms reproduce by dividing, making an exact copy. Dogs reproduce sexually needing one male and one female.
So organisms can procreate and actually fulfill their biological purpose to survive and reproduce. Meiosis is the process in which some organisms reproduce.
animalia is the kingdom of animals so if animals reproduce the it can be both ways.