How do planaria reproduce?

Answer 1

Planaria are hermaphrodites, possessing both testicles and ovaries. Thus, one of their gametes will combine with the gamete of another planarian. This type of gamete fusion is sexual reproduction because it involves the formation and fusion of gametes. In asexual reproduction, the planarian detaches its tail end and each half regrows the lost parts by regeneration, allowing neoblasts (adult stem cells) to divide and differentiate. However, several problems can occur with this, so this does not happen often. Instead, in sexual reproduction, each planarian transports its excretion to the other planarian, giving and receiving sperm. Eggs develop inside the body and are shed in capsules. Weeks later, the eggs hatch and grow into adults. Sexual reproduction is desirable because it enhances the survival of the species by increasing the level of genetic diversity.

Answer 2

they can reproduce either sexually or asexually:

Asexually: anchors itself then detaches its tail which makes another planaria

Sexually: it has both eggs and sperm; the egg gets fertilized and develops inside the body of the planaria and hatches a few weeks later.

Answer 3

planarian regenerate by sexual/asexual reproduction