Answer:
For a contraction to occur there must first be a stimulation of the muscle in the form of an impulse (action potential) from a motor neuron (nerve that connects to muscle). Note that one motor neuron does not stimulate the entire muscle but only a number of muscle fibres within a muscle.
Explanation:
Active and passive humoral immunity are both mechanisms of adaptive immunity that use antibodies. yes this is true
- Our adaptive immune system protects us from infection-related mortality. An new-born born with a significantly compromised adaptive immune system may die shortly unless extreme steps are taken to isolate it from a wide range of infectious agents such as bacteria, viruses, fungi, and parasites.
- The purpose of adaptive immunity is to eliminate invading infections as well as any harmful chemicals they create. Because these reactions are damaging, it is critical that they only occur in response to molecules that are alien to the host and not to molecules that are native to the host. The adaptive immune system's capacity to identify what is foreign from what is self is a fundamental feature.
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A: between the hydrogen atom of one water molecule and the oxygen atom of another
Answer:
Nutrición humana: una descripción general | Temas de ScienceDirect www.sciencedirect.com ›temas› nutrición humana
La ciencia nutricional continúa descubriendo mecanismos cada vez más complejos de cómo ... Así, la leche materna se considera un alimento completo específico de la especie (Lönnerdal, ... Si este fuera un fenómeno generalizado, podría explicar algo de la corriente.
Explanation:
