External fertilisation is found in...

External fertilisation is found in

Homogametes

Internal fertilisation

Heterogametes

Zygotic mitosis to develop embryo

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External fertilisation occurs in which of the following pairs of animals ?

Internal fertilisation occurs in

Define external fertilisation. Mention its disadvantages.

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Organisms exhibiting external fertilisation

Match the column I with column II. {:("Column I", "Column II"),("External fertilisation", "(i) Earthworm"),("Internal fertilisation ", "(ii)Cockroach"),("Bisexual", "(iii) Frogs and Fishes"),("Unisexual", "(iv) Birds and mammals"):}

Given below are a few statements related to external fertilisation. 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 organisms exhibiting external fertilisation. (iv) Offspring formed as a result of external fertilisation have better chance of survival than those formed inside an organism.

Given below are a few statements related to exgternal fertilisation. 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 organisms exhibiting external fertilisation. (iv) Offspring formed as a result of external fertilisation have better chance of survival than thos formed inside an organism.

After fertilisation ovules turn into

Double Fertilisation

AAKASH INSTITUTE ENGLISH-REPRODUCTION IN ORGANISMS -EXERCISE

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