The normal human body temperature is about: MCQ with Answer and Explanation

Explanation:
A synapse is the junction between two neurons (or neuron and effector) where the nerve impulse is transmitted from the presynaptic neuron to the postsynaptic neuron, usually via neurotransmitters. Axon carries impulses away from the cell body, dendrites receive signals, soma is the cell body. Synaptic transmission can be chemical or electrical.

Explanation:
Kwashiorkor results from severe protein deficiency with adequate calorie intake, often seen in children after weaning. It presents with edema, pot belly, fatty liver, skin lesions, and apathy. Marasmus is due to overall calorie and protein deficiency causing wasting. Beriberi and scurvy are vitamin deficiencies.

Explanation:
Fleming accidentally discovered penicillin in 1928 when a mold contaminant (later identified as Penicillium notatum/now Penicillium chrysogenum) inhibited bacterial growth. This led to the first widely used antibiotic. Aspergillus species produce some toxins and acids, Saccharomyces is yeast, Agaricus bisporus is the common mushroom. Penicillin acts by disrupting bacterial cell wall synthesis.