Small secondary lymphoid organs, which cluster along lymphatic vessels, are termed ________.

1 answer:

3 0

Lymph nodes. They comprise the lymphatic system that connects to the blood circulatory system. They are significant in the immune system. At the lymph nodes, foreign bodies in the lymph, such as pathogens, are filtered and trapped in lymph nodes where they are later destroyed by lymphocytes.

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Many of the phenotypes of DiGeorge syndrome have been traced back to one of the genes that is in the deleted region, TBX1. Some

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D. A silent variant near the 5' end of the TBX1 gene.

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TBX1 gene is wild type human being. It gives instructions for making protein called T-box 1. It plays an important role in tissue formation and organs during embryonic development.

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Which statement correctly compares mass and weight?

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Answer:

D. Weight varies with location, but mass does not vary

Explanation:

Weight can be defined as the force acting on a body or an object as a result of gravity.

Mathematically, the weight of an object is given by the formula;

$Weight = mg$

Where;

m is the mass of the object.
g is the acceleration due to gravity.

Mass can be defined as a measure of the amount of matter an object or a body comprises of. The standard unit of measurement of the mass of an object or a body is kilograms.

Irrespective of the location of an object or a body at a given moment in time, the mass (amount of matter that they're made up of) is constant. This ultimately implies that, whether you're in the moon, space, earth or any other place, your mass remains the same (constant).

<em>Hence, the statement that correctly compares mass and weight is that, weight varies with location, but mass does not vary. This is simply because acceleration due to gravity changes with location i.e its value varies with the planets.</em>

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