Explanation:
The muscles opposing the movement become the antagonists.
In a movement, like the back extension, the muscles that extend the back are the agonist.
The muscles that produce the opposite movement, which is back flexion, are the abdominals.
Answer:
A tennis court is the venue where the sport of tennis is played. It is a firm rectangular surface with a low net stretched across the centre. The same surface can be used to play both doubles and singles matches.
Explanation:
Tennis hard courts are made of synthetic/acrylic layers on top of a concrete or asphalt foundation and can vary in color. These courts tend to play medium-fast to fast because there is little energy absorption by the court, like in grass courts.
C. Loss of calcium.
Kwashiorkor is a protein malnutrition.
Marasmus is a protein deficiency.
Loss of Vitamin C is just Vitamin C deficiency, also known as scurvy or scorbutus.
I would say D: appetite;
appetite is a strong desire or liking for something. At Holidays there is typically a large assortment of food that maybe you don't eat on a regular basis, therefore would have a big appetite for them.