Answer:
B. (The first one)
Explanation:
the only thing that is different from the two perish dishes are the temp. this is the independent variable. the dependent variable is the result. in this case, the amount of bacteria after three days
Supports all the organisms on earth
OPTIONS:
A) lymphatic vessels.
B) the venae cavae.
C) the spleen.
D) lymph nodes.
E) lymph.
Answer:
B) the venae cavae.
Explanation:
The lymphatic system is an organ system that consists of a network of lymphoid tissues, lymphatic vessels and organs, which perform functions such as removal of toxins and unwanted materials, as well as production of immune cells that helps primarily in fighting against infection.
Lymphatic vessels, the spleen, lymph nodes, and lymph are all part of the lymphatic system.The venae cavae are two large vessels that empty deoxygenated blood received from all parts of the body into the right atrium. They are not part of the lymphatic system.
Answer:
The duration that it takes for all voltage-gated Na+ channels to return to a closed, but active (not inactivated) state after the initial rapid depolarization "spike". ( D )
Explanation:
The property of a neuron's action potential that determines the maximum firing rate is ; The duration that it takes for all voltage-gated Na+ channels to return to a closed, but active (not inactivated) state after the initial rapid depolarization "spike".
The firing rate of a neuron defines the number of spikes that a neuron can produce per second and for a typical neuron that number is from 1 spike to 200 spikes per second