Answer:
The different use of the tongue in amphibians and mammalian.
Explanation:
The amphibians use their tongue to catch their prey by providing outward and extending inwards for election and digestion process. The mammals ( humans) use their tongue to taste and roll food into bolus with then goes through the oesophagus down to the stomach.
The correct answer is D. Push-ups.
<em>Push-ups is the only activity which strengthens muscles and can be completed in school.</em>
Exercise helps muscles to be at rest and also makes someone feel reinvigorated. There are some exercise which are strength-building.
For example, jumping sacks, forward lunges, push-ups, arm extension and plank.
Answer: B
Explanation:
After a muscle fiber is stimulated by a nerve signal, a release of stored calcium ions leads to muscle contraction.
Common electrolytes include sodium, chloride, magnesium, calcium and potassium.
Sodium and potassium help in the generation of nerve impulses while calcium aids muscle contraction. Sodium is also actively involved in the movement across cell membranes.
True...yes it is an example of Communication Roadblock
