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Answer:
Nerve impulse
Explanation:
A nerve impulse is transmitted through the synaptic cleft by acetylcholine. When an impulse reaches the synaptic knob, it stimulates the vesicles to move towards the presynaptic membrane releasing the acetylcholine. The transmitter substance makes the membrane permeable. An action potential is then formed along the neuron.
The process of <u><em>meiosis </em></u>increases genetic variability as it produces gametes for sexual reproduction
Explanation:
More complex organisms, including humans, produce specialized sex cells (gametes) that carry half of the genetic information, then combine these to form new organisms. The process that produces gametes is called meiosis. During meiosis, homologous chromosomes (1 from each parent) pair along their lengths.
Answer:
The chemical properties of an element are determined by the configuration of its electrons in orbit around its nucleus.
Explanation:
The number of electrons in each element’s outermost valence shell, is the primary factor in determining its chemical properties. The number of electrons in an atom are equal to the number of protons in the nucleus so the electrical charges balance each other. The number of protons in the nucleus of an atom is its Atomic Number.
Answer:It could increase the levels of dust mites
Explanation: duh pay attention in class DUH
