Modes of Reproduction in Lower Organisms

The desirable characters of parents can be retained in offspring by

Which of the following plants are grown by vegetative propagation?

Hydra reproduces by the process of binary fission.

'X' is an asexual mode of reproduction in organisms. Here, the nucleus of the organism divides repeatedly to form a number of equal-sized daughter nuclei and each daughter nuclei break away together with a small portion of the cytoplasm. It is found in Plasmodium. The type of reproduction mentioned as 'X' is

'X' mode of reproduction is the process of producing new organism from a single parent without the involvement of sex cells. Four modes of this type of reproduction are 'A' in Amoeba, 'B' in Spirogyra, 'C' in Planaria and 'D' in Hydra. The mode of reproduction used by Amoeba is _____. (Fragmentation/Binary fission)

What are the means of reproduction in unfavourable conditions?
Budding
Multiple fission
Spore formation
Fragmentation
 

How do the following organisms reproduce?

(a) Hydra (b) Yeast (c) Planaria (d) Rhizopus

Name the thread like non-reproductive structures present in Rhizopus.

Name the following:

'Blobs' that develop at the tips of the non-reproductive threads in Rhizopus.

Which part of Bryophyllum plant helps it to multiply vegetatively?

Explain how these structures protect themselves and what is the function of the structures released from the 'blobs' in Rhizopus.

When a broken piece of the stem of a plant X is planted in the soil, a new plant grows from it in a week's time. The leaves of plant X also have many small entities Y in their margins which can fall to the ground alone or along with leaves and grow into new plants.

Name a common plant grown in many homes which can be propagated from its broken stems like plant X. (Money plant/ Basil plant/ Aloe Vera)

Bryophyllum can reproduce vegetatively by roots.

Which of the following plants reproduce by the method of vegetative propagation by leaves?