Download App

How do Organisms Reproduce? — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceHow do Organisms Reproduce?3 Marks
Question
What happens when:
  1. Accidently, Planaria gets cut into many pieces?
  2. Bryophyllum leaf falls on the wet soil?
  3. On maturation sporangia of Rhizopus bursts?
✓

Answer

  1. Each piece regenerates into a new Planaria.
  2. Its filaments break into smaller pieces or fragments and each fragment gives rise to a new filament.
  3. It releases spores which germinate into new mycelium in moist conditions.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[3 Mark Questions]" from How do Organisms Reproduce?→How do Organisms Reproduce? — all question types→Science STD 10 question papers→CBSE Board STD 10 question papers→CBSE Board question paper generator→

Similar questions

What are the qualities of an ideal source of energy?
→
If a potential difference of 10V causes a current of 2A to flow for 1 minute, how much energy is transferred?
→
What are isomers? Draw the structures of two isomers of butane, $C _4 H _{10}$. Why can't we have isomers of first three members of alkane series?
→
A concave lens of focal length 15 cm forms an image 10 cm from the lens. How far is the object placed from the lens? Draw the ray diagram.
→
Describe reproduction by spores in Rhizopus.
→
What is the principle of an electric motor? Name some of the devices in which electric motors are used.
→
  1. List the factors on which the resistance of a conductor in the shape of a wire depends.
  2. Why are metals good conductors of electricity whereas glass is a bad conductor of electricity? Give reason.
  3. Why are alloys commonly used in electrical heating devices? Give reason.
→
What is nuclear fusion? Explain with an example. Write the equation of the reaction involved.
→
How is charcoal prepared? Explain why, charcoal is a better fuel than wood.
→
An object of height 6 cm is placed perpendicular to the principal axis of a concave lens of focal length 5 cm. use lens formula to determine the position, size and nature of the image if the distance of the object from the lens is 10 cm.
→