The question is; would a drug that binds irreversibly to these receptors be an effective contraceptive in mammals?, the answer is;Yes; because if the receptors are blocked the sperms will not be able to penetrate the zonal pellucida of the egg. Contraceptives prevents pregnancy by interfering with the normal process of ovulation, fertilization, and implantation.
Eukaryotic cells<span> contain membrane-bound organelles, including a nucleus</span>.Prokaryotic cells<span> do not contain a nucleus or any other membrane-bound organelle.</span>
Answer:When a cell needs to move a molecule many times, it uses vesicles. Vesicles are cellular organelles that are composed of a lipid bilayer. You can think of vesicles as cellular envelopes that are used to transport materials from one place to another. Vesicles also function in metabolism and enzyme storage as well.
Explanation:
<span>Well, deep ocean trenches form on a specific type of plate boundary called a subduction zone, and these zones occur when an ocean plate collides with another ocean plate. Hope I helped.</span>
