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Alex787 [66]
3 years ago
14

Vessels that contain valves to prevent backflow of blood. True or False

Health
2 answers:
7nadin3 [17]3 years ago
5 0

Answer:

true, they would be veins

sergejj [24]3 years ago
3 0

Answer:

True

Explanation:

Unlike arteries, veins contain valves that ensure blood flows in only one direction. (Arteries don't require valves because pressure from the heart is so strong that blood is only able to flow in one direction.) Valves also help blood travel back to the heart against the force of gravity.

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A thermometer used to measure the temperature of food must be accurate to what temperature?
Paha777 [63]

Answer: A)

Explanation:

The correct answer is A). A thermometer that is used to measure the temperature of the food must be accurate to +/-2°F or +/-1°C and the ones that are measuring air temperature in food-storage must be accurate to +/-3°F or +/-1.5°C. These temperatures are the ones that are the most accurate ones and that is why this is a correct answer.

B, C, and D are incorrect even though they are used, they cannot measure the exact temperature of the food.

8 0
3 years ago
A 6-month-old girl has been experiencing vomiting and diarrhea for the past 24 hours. Her axillary temperature is 99.2º F. The m
myrzilka [38]
I would obviously call the doctors child immediately right away if the fluids don’t stay down.
5 0
2 years ago
If Sally has a fitness goal to improve her mile run time from 10 minutes and 15 seconds per mile to below 8 minutes and 30 secon
Alik [6]

Hello. This question is incomplete. The full question is:

If Sally has a fitness goal to improve her mile run time from 10 minutes and 15 seconds per mile to below 8 minutes and 30 seconds per mile in 3 months, which training plan using the heart rate zones would best help her achieve her goal?

Sally should do all her workouts in zone 4 in order to increase her anaerobic threshold.

Sally should most of her workouts in the 5th zone to increase speed.

Sally should do most of her workouts in the 1st and 2nd zones to increase her ability to withstand fitness activity.

Sally should do most of her workouts in zone 3, but have some of her workouts

Answer:

Sally should do all her workouts in zone 4 in order to increase her anaerobic threshold.

Explanation:

The heart rate zones are used to measure the athlete's cardiovascular strength and to improve the intensity of physical training. These zones are divided into 5 phases, with phases 1, 2 and 3 geared to provoke the athlete's adaptation to training intensity and 4 and 5 geared to cause greater physical performance to workouts of greater intensity.

Sally wants to increase the intensity of her training, for this reason, we can conclude that she must do all her exercises in zone 4. This is because this zone has the ability to increase the body's aerobic threshold, promoting increased resistance and speed of the body , which will allow Sally to finish her training in less time.

3 0
3 years ago
Does anyone skate, if you do how do i 5-0 a ledge?​
ipn [44]

Answer:

I don't sorry

Explanation:

5 0
3 years ago
My Plate makes recommendations for what you should eat on a monthly basis. <br> True or False?
Neporo4naja [7]
I think it’s truth.
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3 years ago
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