Most receptor proteins are embedded in the l<span>ipid bilayer of the cell membrane.</span>
A or b and you can also have by birth but that’s not the answer to your question
Eukaryotic but plant specialized
The transfer of antibodies from a mother to the fetus. This occurs naturally, and since it is the transfer of antibodies, it is passive immunity.
The terrestrial gastropods are the only mollusks that have adapted to all the habitats of the Earth. They dwell in areas of high altitude, mountainous regions, hot and cold places. Land snails live and perform their vital functions on the ground and not in the sea or bodies of fresh water.
