Answer:
yes it is true, at least 60 min a day
exercising is very important for our bodys and it keeps us in shape and makes us active rather than lazy
~batmans wife dun dun dun....
<span><span>A. </span>B-cells
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Which type of white blood cells is produced in the thymus and destroys the
cell membranes of bacteria are B-cells. These b-cells are also known and called as B
lymphocytes. Their function primarily is to create antibodies which combats
antigens such as bacteria. They are also responsible for immune regulatory
indications –cytokines. In contrast, T-cells are a type of white blood cells
that combat any substance from the inside or within the body.
Common risky behaviour
unprotected sexual activity. sexting and other risky uses of social media. tobacco smoking, alcohol use and binge-drinking. illegal substance <em>use.</em><em> </em>
Delta is a type of fibre that transmits signals that are interpreted and perceived as pain.
<h3>
Delta fibres</h3>
A delta fibres (also known as A fibres) are a type of sensory fibre. They respond to cold and pressure stimuli, and as nociceptors, their stimulation is perceived as fast/first pain input. Because they are thinly myelinated, they transmit impulses quicker than unmyelinated C fibres but slower than other, thicker myelinated "A" class fibres.
Structure
They have myelinated axons that are thin (2 to 5 m in diameter) and have a moderate conduction velocity, or speed at which a nerve signal moves (2 to 30 m/s). These nerve fibres make up the afferent portion of the reflex arc that causes the body to "draw away" from noxious stimuli because they are linked to acute (sharp) pain (e.g. retracting your hand away from a hot stove). A part of A fibres is also linked to pressure and temperature perception (also known as "cold receptors" in mammals). Contrarily, slow-conducting, unmyelinated C fibres convey gradual, scorching pain.
Learn more about receptors here:-
brainly.com/question/14613585
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Carbohydrates changed into sugar
proteins broken down to amino acids
fats converted to fatty acids
nutrients carried to cells
