Answer:
with dipping a paper towel strand into water.
Explanation:
this mimics the xylem.
The jugular veins are the veins responsible for bringing deoxygenated blood from the head to the heart. There are two sets of jugular veins, the internal and external ones. In pigs, the internal and external jugular veins are similar in size, while in humans the internal jugular vein is bigger in diameter than the external.
Answer:
The correct answer will be option-They have about the same endurance as skeletal muscle fibers.
Explanation:
Cardiac muscle is one of the three types of muscle which is present in the Heart of the organism.
The muscle fibres of the cardiac muscle possess a high amount of myoglobin- an Oxygen carrying molecule which can store the oxygen for some time.
The cardiac muscles have to pump blood in the body, for which they require a high amount of ATP, so they possess larger mitochondria.
The studies have shown that the cardiac muscles store glycogen carbohydrate which is used during the relaxation phase in stress conditions.
Since the cardiac muscles do not have the same endurance as the skeletal muscles which with physical exercise can be increased therefore the selected option is the correct answer.
Answer:C
Explanation: A,B and D are financially supported by a commercial entity that can benefit from stated views that promote their product (A, D) or make adverse claims against a competitor to their product (B).
Even if the information is factual, the perception of possible bias makes it unreliable without unbiased/disinterested validation.
For C, the National Heart Association, although not disinterested, is a reputable organisation whose concern is with public health, and in this case, the information can be taken as unbiased.
