<span>Proteins that minimize fluctuations in pH are known as buffers. A buffering agent can be either a weak acid or weak base. Buffering agents are usually added to water to form a buffer solution, which only slightly changes its pH in response to other acids and bases being combined with it, particularly a strong acid or a strong base.</span>
I found a similar question. If the attached document is the same as your supposed question, then my answer are below.
AV valves open - atrial pressure is greater than ventricular pressure
AV valves closed - Ventricular pressure rises above atrial pressure
Semilunar valves closed - ventricular pressure is lower than arterial pressure
Semilunar valves open - pressure in the ventricles is greater than the pressure in the great arteries
Hey there Strongl9485,
Answer:
Lysis of the host cell
Hope this helps :D
<em>~Top♥</em>
Answer:
Chitin.
Explanation:
The structure that is not a component of wall of sponges is Chitin. Their body comprise of calcareous or siliceous spicules or protein spongin fibres. Choanocytes are the distinctive cells located in the interior body walls of sponges. Sponges are similar to other animals in many characteristics such as they are multicellular, heterotrophic, lack cell walls and produce sperm cells in order to produce offspring sexually and also different from animals due to lack of tissues and organs.