In which of the following is external fertili | vedclass

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(D) External fertilization is a process where the fusion of male and female gametes occurs outside the body of the female organism. In reptiles and bi

Vedclass · Accepted Answer

None of the above

Vedclass · Answer

(D) External fertilization is a process where the fusion of male and female gametes occurs outside the body of the female organism. In reptiles and birds,fertilization is internal. Most cartilaginous fish (Chondrichthyes) also exhibit internal fertilization. Therefore,none of the options provided correctly represent a group where external fertilization is the primary mode of reproduction,as most aquatic organisms like bony fish and amphibians exhibit external fertilization.

$a$. Cellular level of organisation	$1$. Cnidarians
$b$. Organ level of organisation	$2$. Platyhelminthes
$c$. Organ system level of organisation	$3$. Chordates
$d$. Tissue level of organisation	$4$. Porifera

In which of the following is external fertilization observed?

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$a$. Cellular level of organisation $1$. Cnidarians
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