Question

Embryos of Protostomes are called "Mosaic embryos". Justify the statement.



#Quality answer is expected.
​

Answer 1

Answer:

An embryo is the early stage of development of a multicellular organism. In general, in organisms that reproduce sexually, embryonic development is the part of the life cycle that begins just after fertilization and continues through the formation of body structures, such as tissues and organs. Each embryo starts development as a zygote, a single cell resulting from the fusion of gametes (i.e. fertilization of a female egg cell by a male sperm cell). In the first stages of embryonic development, a single-celled zygote undergoes many rapid cell divisions, called cleavage, to form a blastula, which looks similar to a ball of cells. Next, the cells in a blastula-stage embryo start rearranging themselves into layers in a process called gastrulation. These layers will each give rise to different parts of the developing multicellular organism, such as the nervous system, connective tissue, and organs.

Answer 2

$\huge\fcolorbox{black}{black}{\color{cyan}{Answer}}$

________________________

➻ ᴘʀᴏᴛᴏsᴛᴏᴍᴇs ᴀʀᴇ ᴛʜᴇ ᴍᴇᴍʙᴇʀs ᴏғ ᴛʜᴇ ʟᴏᴡᴇʀ ɪɴᴠᴇʀᴛᴇʙʀᴀᴛᴇ ᴘʜʏʟᴀ ɪɴ ᴡʜɪᴄʜ ᴛʜᴇ ᴍᴏᴜᴛʜ ᴀᴘᴘᴇᴀʀs ʙᴇғᴏʀᴇ ᴛʜᴇ ᴀɴᴜs ᴅᴜʀɪɴɢ ᴅᴇᴠᴇʟᴏᴘᴍᴇɴᴛ.

________________________

➻ ᴄʟᴇᴀᴠᴀɢᴇ ᴏғ sᴜᴄʜ ᴏʀɢᴀɴɪsᴍs ɪs sᴘɪʀᴀʟ ᴀɴᴅ ᴅᴇᴛᴇʀᴍɪɴᴀᴛᴇ, ᴀɴᴅ ᴛʜᴇ ᴄᴏᴇʟᴏᴍ ғᴏʀᴍs ᴀs ᴀ sᴘʟɪᴛᴛɪɴɢ ᴏғ ᴛʜᴇ ᴍᴇsᴏᴅᴇʀᴍ

________________________

➻ sᴜᴄʜ ᴄʟᴇᴀᴠᴀɢᴇ ʟᴇᴀᴅs ᴛᴏ ᴛʜᴇ ғᴏʀᴍᴀᴛɪᴏɴ ᴏғ "ᴍᴏsᴀɪᴄ ᴇᴍʙʀʏᴏ"

________________________

➻ ᴇᴍʙʀʏᴏs ᴛʜᴀᴛ ᴀʀᴇ ᴍᴏsᴀɪᴄ ᴄᴀɴ ʜᴀᴠᴇ ᴅɪғғᴇʀᴇɴᴛ ᴘʀᴏᴘᴏʀᴛɪᴏɴs ᴏғ ɴᴏʀᴍᴀʟ ᴀɴᴅ ᴀʙɴᴏʀᴍᴀʟ ᴄᴇʟʟs.

________________________

➻ ɪᴛ ʀᴇsᴜʟᴛs ɪɴ ᴛʜᴇ ᴅᴇᴠᴇʟᴏᴘᴍᴇɴᴛᴀʟ ғᴀᴛᴇ ᴏғ ᴛʜᴇ ᴄᴇʟʟs ʙᴇɪɴɢ sᴇᴛ ᴇᴀʀʟʏ ɪɴ ᴛʜᴇ ᴇᴍʙʀʏᴏ ᴅᴇᴠᴇʟᴏᴘᴍᴇɴᴛ.

________________________

$\color{lime} {\mid{\fbox{\tt{Hope\: it\: works}}\mid}}$