nucleic acids. certain proteins. cell membranes. certain carbohydrates.
Explanation:
They both are alike because they both rely on frequencies to determine perception. In hearing, a sounds frequency determines its pitch whereas in TOUCH the frequency of vibrations is used to perceive texture and to sense the environment through hand held tools.
First thing is Male gametes are called sperm and Female gametes are called eggs. So some physical differences are that the eggs are spherical in shape, much larger then sperm, and are immobile (they stay in the female reproductive organ during fertilization). Sperm are smaller, are in a cone shape, and have tails so the could move to the egg during fertilization.
Kidneys are important in homeostasis as they control the blood water level and the regulation of salt and iron contents within the body. See related links for more info. Kidneys are important in homeostasis as they control the blood water level and the regulation of salt and iron contents within the body.
hope that helps! :)