Which reproductive adaptation is characteristic of most terrestrial vertebrates but not of most aqua

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Reproduction in Organisms

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Which reproductive adaptation is characteristic of most terrestrial vertebrates but not of most aquatic vertebrates?

External fertilization

Internal fertilization

Motile gametes

External development

(AIIMS-2009)

Solution

Most vertebrate animals that live on land have an adaptation that allows internal fertilization, whereby the male penis inserts sperm directly into the female body. This is advantageous since sperm need liquid to swim and the moist female reproductive tract provides this. Aquatic vertebrate animals live in water so sperm can easily be deposited in the water and swim to the female reproductive tract.

Standard 12

Biology

Which organism have haploid plant body

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$A$ -In Plant, the end of juvenile phase which makes the : beginning of the growth phase.

$R$ -In Plant, Juvenile phase is also known as vegetative phase.

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$(a)$ In both plants and animal, have three phases during their life cycle.

$(b)$ In plant and animal, hormones are responsible for the transitions between the three phase.

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$A-$ Events after the formation of zygote are called post fertilization events

$R -$ In viviparous animals a young one develops out side the mother body

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What is the chromosome number in meiocyte of potato ?

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Which reproductive adaptation is characteristic of most terrestrial vertebrates but not of most aquatic vertebrates?

Solution

Similar Questions

Which organism have haploid plant body

$A$ -In Plant, the end of juvenile phase which makes the : beginning of the growth phase. $R$ -In Plant, Juvenile phase is also known as vegetative phase.

$(a)$ In both plants and animal, have three phases during their life cycle. $(b)$ In plant and animal, hormones are responsible for the transitions between the three phase.

$A-$ Events after the formation of zygote are called post fertilization events $R -$ In viviparous animals a young one develops out side the mother body

What is the chromosome number in meiocyte of potato ?

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$A$ -In Plant, the end of juvenile phase which makes the : beginning of the growth phase.

$R$ -In Plant, Juvenile phase is also known as vegetative phase.

$(a)$ In both plants and animal, have three phases during their life cycle.

$(b)$ In plant and animal, hormones are responsible for the transitions between the three phase.

$A-$ Events after the formation of zygote are called post fertilization events

$R -$ In viviparous animals a young one develops out side the mother body