The activity that helps build the most muscular endurance is rowing
Answer:
The head of the sperm contains the nucleus. The nucleus holds the DNA of the cell. The head also contains enzymes that help the sperm break through the cell membrane of an egg. The midpiece of the sperm is packed with mitochondria.
Explanation:
Answer:
yes its true
Explanation:
please mark me as brainliest
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.
Contamination of food items by other living organism is known as food contamination. It<span> refers to foods that are spoiled or tainted because they either contain microorganisms, such as bacteria or parasites, or toxic substances that make them unfit for consumption.</span>
