How does each flatworm reproduce?
Flatworms are hermaphroditic (having both male and female sex organs) and they typically reproduce both sexually and asexually. The majority of sexual reproduction is through cross-fertilization (where both individuals fertilize each other).
How do the planaria reproduce asexually?
Asexual freshwater planarians reproduce by tearing themselves into two pieces by a process called binary fission. The resulting head and tail pieces regenerate within about a week, forming two new worms.
What are 3 asexual reproduction examples?
The different types of asexual reproduction are (1) binary fission, (2) budding, (3) vegetative propagation, (4) spore formation (sporogenesis), (5) fragmentation, (6) parthenogenesis, and (7) apomixis.
Are birds asexual?
Birds reproduce sexually and have separate sexes and internal fertilization, so males and females must mate for fertilization to occur. Mating is generally preceded by courtship. In most species, parents also take care of their eggs and hatchlings.
Do birds have a period?
In birds with a seasonal laying period, there are approximately three phases of development of the reproductive system: a prenuptial acceleration phase, a culmination phase, and a refractory period.
Are cockroaches asexual?
Common female cockroaches can reproduce for years without needing a mate, producing dozens of generations of all-female descendants, a team of scientists has found. Parthenogenesis is a form of asexual reproduction, allowing young insects to spawn from unfertilised eggs.
How do female roaches get pregnant?
Breeding. Attracted males approach females and flap their wings to denote interest. Reproduction commences when a male cockroach backs into a female cockroach, depositing sperm.
What is the lifespan of a cockroach?
approximately one year
How long does it take for a cockroach to starve to death?
How long can a cockroach survive without food and water? Because they are cold-blooded insects, cockroaches can live without food for one month, but will only survive one week without water.