Mohamed Abbas, a science teacher at Senioritis.io

Mohamed Abbas
August 16, 2023
Biology

The Role of Melatonin in Sexual Development

If Melatonin is anti-gonadal, why is it associated with early sexual maturity in congenitally blind girls? Melatonin is a hormone that is mainly produced by the pineal...

Mohamed Abbas
August 16, 2023
Biology

Understanding Shoulder Bone Growth, Fusion, and Changes in Adulthood

Can the shoulder bones grow after the growth plates have fused? The shoulder bones, specifically the clavicle (collarbone), scapula (shoulder blade), and humerus (upper arm bone), do...

Mohamed Abbas
August 16, 2023
Biology

The Difference Between the Immune Response and Allergic Response

Why is there a distinction between an *allergic* and an *immune* response? The distinction between an allergic and an immune response lies in the specific nature of...

Mohamed Abbas
August 16, 2023
Biology

Understanding Caffeine Sensitivity

Is there an antidote for caffeine, e.g. as a supplicant for caffeine-intolerant persons? No, there is no specific antidote or supplicant for caffeine. Caffeine intolerance is relatively...

Mohamed Abbas
August 16, 2023
Biology

Understanding Sympathetic and Parasympathetic Axons in the Autonomic Nervous System

Why are the sympathetic and parasympathetic axons different, in terms of presynaptic and postsynaptic length? The sympathetic and parasympathetic axons in the autonomic nervous system differ in...

Mohamed Abbas
August 16, 2023
Biology

The Role of Basement Membrane in Tissue Remodeling, Growth, and Pathological Conditions

Can the basement membrane of blood capillaries expand? The basement membrane of blood capillaries is a thin layer of specialized extracellular matrix located between the endothelial cells...

Mohamed Abbas
August 16, 2023
Biology

The Benefits and Circumstances of Exhaling Through the Nose and Mouth

Exhalation in human breath, through mouth or nose: which is most usual? Exhalation in human breath is most commonly done through the nose. Our nasal passages play...

Mohamed Abbas
August 16, 2023
Biology

Challenges in Achieving Herd Immunity Against Common Cold Coronaviruses

Why is there no herd immunity against common cold coronaviruses? Herd immunity refers to a situation where a large proportion of a population becomes immune to a...