T cells. When HIV arrives in the lymph nodes – around 24 to 48 hours after exposure – they activate other immune cells, such as CD4 t-cells, HIV's primary target.
Given parameters:
Displacement of the seagull = 145m to the east
Time taken to cover the distance = 10s
Unknown:
Velocity = ?
Solution:
Velocity is one of the physical quantities. It is the speed in a specific direction. Hence, velocity is a vector quantity having both magnitude and direction.
So, mathematically;
Velocity = 
Velocity = 
= 14.5m/s due east
The velocity of the seagull is 14.5m/s due east
Answer: Alert a teacher, get the appropriate tools to clean it up with and dispose of it properly
Explanation:
Answer: i dont know the answer
Explanation: bla bla bla bla bla
<span>The correct answer is cGMP.</span>
<span>cGMP, during the dark (when there are no stimulations of photoreceptor cells), reaches high intracellular levels. When the light stimulation occurs cGMP levels decrease because it is converted to GMP by phosphodiesterase. Phosphodiesterase is activated by transducin which is activated by excited rhodopsin (contains photopigment).</span>
<span>
Low levels of cGMP block the cGMP gated ion channels and that prevents the entry of Na and Ca. Because of that membranes becomes more negative, hyperpolarization occurs and this creates a signal for the next cell.</span>
