Question

state the reason why most of terrestrial animals fertilization takes place internally

Answer 1

is so because the animal's gamete can swim to each other and can fuse together in water
 Internal fertilization takes place inside the body of the female. ... External fertilization takes place outside the body of the female. It usually takes place in water, usually the environment in which the animal lives eg fish and amphibians. This is because eggs and sperm would dry out and die if they are not kept wet.

Internal fertilization takes place inside the body of the female. ... External fertilization takes place outside the body of the female. It usually takes place in water, usually the environment in which the animal lives eg fish and amphibians. This is because eggs and sperm would dry out and die if they are not kept wet.

Answer 2

ʙᴇᴄᴀᴜꜱᴇ ᴛʜᴇ ᴀɴɪᴍᴀʟ ɢᴀᴍᴇᴛꜱ ᴄᴀɴ ꜱᴡɪɴ ɪɴ ᴡᴀᴛᴇʀ ᴀɴᴅ ꜰᴜꜱᴇ ᴡɪᴛʜ ᴇᴀᴄʜ ᴏᴛʜᴇʀ