First blank is barb fish
And the second blank is newts
Modern classification, otherwise known as taxonomy, was invented so as to have a single system used throughout the entire world in understanding different types of beings in existence. This way you avoid having different names for same things.
There are 3 fitness principles: overload, progression and specificity.
According the principle of overload in order to improve, athletes must continually work harder as they their bodies adjust to existing workouts. This <span>is the basic sports fitness training concept.</span>
In the 3-week workout routine that incorporates the fitness principle of overload several things must be satisfied:loads should be gradually and progressively increased , the training loads should be planed and monitored, the workout routine should include workouts that allow recovery (stretching for example), competition should be involved, and very important muscular failure should be avoided.