Which of the following statements, support the view that elaborate sexual reproductive process develops much later in the organic evolution?
i. Lower groups of organisms have simpler body design
ii. Asexual reproduction is common- in lower groups
iii. Asexual reproduction is common in higher groups of organisms
iv. The high incidence of sexual reproduction is in angiosperms and vertebrates.

Given below, are a few statements related to external fertilization. Choose the correct statements:
i. The male and female gametes are formed and released simultaneously
ii. Only a few gametes are released into the medium
iii. Water is the medium in a majority of organism exhibiting external fertilization
iv. Offspring formed as a result of external fertilization have better chance of survival than those formed inside the organism

A few statements with regard to sexual reproduction are given below:
i. Sexual reproduction does not always require two individuals
ii. Sexual reproduction generally involves gametic fusion
iii. Meiosis never occurs during sexual reproduction
iv. External fertilization is a rule during sexual reproduction
Choose the correct statements from the options below:

A few statements describing certain features of reproduction are given below. Select the options that are true for both sexual and asexual reproduction from the options given:
(i) Gametic fusion takes place
(ii) Transfer of genetic material takes place
(iii) Reduction division takes place
(iv) Progeny have some resemblance, with parents

"Nothing lives forever, but life continues". What does it mean?

Identify the correct option to label the diagram Identify the structure
1- Immature proglottids
2 - Gravid proglottids
3 - Scolex
4 - Mature proglottids
5 - Neck

Identify the correct option to label the diagram
1 - Bud forming
2 - Osculum
3 - Bud growing
4 - Daughter individual
5 - Individual parent

Identify the correct option to label the diagram
1 - Archaeocytes
2 - Inner membrane
3 - Micropyle
4 - Outer membrane
5 - Monaxonspicules

In _____ types of parthenogenesis egg can develop into individuals of any sex.

______ is a process by which the proglottids are cut off from the tapeworm.

In _____ types of natural parthenogenesis only females are produced.

Paedogenetic parthenogenesis is seen in ______

Exchange of certain amount of nuclear material during sexual reproduction is called _______

Fusion of morphologically and physiologically similar gametes is called ______

______ refers to the fusion of small sized, morphologically different gametes.

The sexual union of young individuals produced immediately after the division of the parent Cell is called _____

Starfish shown ______ type of regeneration.

Regeneration was first studied in _______

Regeneration was first studied by _______

The gravid proglottids are cut off from the parent body in ______