Explain why small insects can walk on the surface of a pond and why tears protect the surface of the eye from dust particles
A) The attraction of the water molecules disrupts the ionic bonds preventing small objects from penetrating the water.
B) The attraction of water molecules creates a gas layer that prevents small objects from penetrating the water.
C) The attraction of water molecules creates an ice layer that prevents small objects from penetrating the water.
D) The attraction of water molecules creates a surface tension barrier that prevents small objects from penetrating the water.
E) The attraction of water molecules forms ionic bonds creating a barrier that prevents small objects from penetrating the water.
Answer: D
You might also like to view...
Relaxin is a hormone produced by the placenta and ovaries. The function of this hormone is to ________
A) ensure the implantation of the blastula B) block the pain of childbirth C) prevent morning sickness D) relax the pubic symphysis
Low-grade fever is an effective defense for short periods of time because it
A) includes pyrogens that destroy the pathogens. B) slows the attack of phagocytes. C) increases temperature, which slows the growth of bacteria. D) increases iron in the blood.
DNA and RNA are nucleic acids
Indicate whether the statement is true or false
Chemically gated ion channels are mainly found in the ________ segment of a neuron.
A. conductive B. initial C. receptive D. transmissive