What is the most accurate description of the structure labeled b? (a) thymus gland: contains b cells that protect the intestines from infection (b) thymus gland: enables immature lymphocytes to mature into t cells (c)payer's patch: enables immature lymphocytes to mature into t cells (d) payer's patch: contains b cells that protect the intestines from infection my guess is (b).

The correct answer is B. Thymus gland: enables immature lymphocytes to mature into T cells

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The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.