Question

Write the difference between unisexual and bisexual animal. Give one example of each.

Answer 1

Hint:The organism is unisexual or Bisexual depends on whether the reproductive system of both male and female lies in one organism or not. Bisexual animals are also known as Monoecious animals and unisexual animals are also known as Dioecious animals.

Complete answer:
Here are some differences between unisexual and bisexual animal.

UNISEXUAL ANIMALS	BISEXUAL ANIMALS
1.In unisexual animals, the male and female reproductive organs are present on different animals.	1.In bisexual animals, the male, and female reproductive organs are present on the same animal.
2.A Unisexual organism can produce either the male gamete or the female gamete.	2.Bisexual organism is capable of producing both male and female gametes.
3.It shows biparental reproduction, that is reproduction involving two parents, Hence they are also known as Dioecious animals.	3. It shows uniparental reproduction, that is reproduction involving only one parent. Hence they are also known as Monoecious animals
4. These animals show both variability and heterozygosity due to the crossing of two animals which leads to offspring which inherits both characters of male parent and female parent.	4. There is the least genetic variation among organisms since the offspring produced is identical to the parent organism as only one parent is involved.
5. Some Examples of unisexual animals are Mammals, Insects, Sponges, Birds, and Reptiles.	5.Some example of Bisexual animals are Earthworms, Cockroach, Squid, Slugs, and Jelly Fish.

Note:
-If unisexual animals are isolated they cannot reproduce whereas this is not the problem with bisexual animals and they can also reproduce when isolated.
-Bisexual animals are also known as Hermaphrodite animals.
-Parthenogenesis is the process of development of ovum without fertilization, such a process is commonly observed in lower organisms like insects.