A student while observing an embryo of a gram seed listed various parts of the embryo as listed below :

Testa, Micropyle, Cotyledon, Tegmen, Plumule, Radicle. On examining the list the teacher commented that only three parts are correct. Select these three correct parts :

• Cotyledon, Testa, Plumule

• Cotyledon, Plumule, Radicle

• Cotyledon, Tegmen, Radicle

• Cotyledon, Micropyle, Plumule

What happens when :
Bryophyllum leaf falls on the wet soil?

What happens when :
On maturation sporangia of Rhizopus bursts?

State the changes that take place in the uterus when :
Implantation of the embryo has occurred.

State the changes that take place in the uterus when :
Female gamete/egg is not fertilised

Name the organ that produces sperms as well as secretes a hormone in human males. Name the hormone it secretes and writes its functions.

Name the parts of the human female reproductive system where fertilisation occurs.

Explain how the developing embryo gets nourishment inside the mother's body.

A student while observing an embryo of a gram seed listed various parts of the embryo as listed below :

Testa, Micropyle, Cotyledon, Tegmen, Plumule, Radicle. On examining the list the teacher commented that only three parts are correct. Select these three correct parts :

Name the type of asexual reproduction in which two individuals are formed from a single parent and the parental identity is lost. Write the first step from where such a type of reproduction begins. Draw first two stages of this reproduction. 

Write one main difference between asexual and sexual mode of reproduction. Which species is likely to have comparatively better chances of survival - the one reproducing asexually or the one reproducing sexually ? Give a reason to justify your answer.