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EleoNora [17]
3 years ago
6

How would you test presence of starch in leaves??

Health
1 answer:
prisoha [69]3 years ago
8 0
Iodine solution is used to test leaves for the presence of starch. You need to: heat a plant leaf in boiling water for 30 seconds (this stops its chemical reactions) heat it in boiling ethanol for a few minutes (this removes most of its colour)
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-----A false sensory perception in the absence of a real external stimulus is​
Aleksandr-060686 [28]

Answer:

hallucination

Explanation:

A hallucination is a sensory perception experienced in the absence of an external stimulus, as distinct from an illusion, which is a misperception of an external stimulus. ... Psychological research has presented the idea that hallucinations may result from biases in what are known as metacognitive abilities

7 0
3 years ago
What causes chronic strains?
cricket20 [7]

Twisting or pulling a muscle or tendon can result in a strain. It can also be caused by a single instance of improper lifting or by over stressing the back muscles. A chronic strain usually results from overuse involving prolonged, repetitive movement of the muscles and tendons. In addition, there are several factors that put a person at greater risk for a back strain or sprain, including excessively curving the lower back, being overweight, having weak back or abdominal muscles, and tight hamstrings (muscles in the back of the thighs). Playing sports that involve pushing and pulling—such as weightlifting and football—also increases the risk of a low-back injury. Chronic strains happen slowly over time from prolonged, repetitive overuse of muscles. Chronic strains develop from using the same muscle groups in the same pattern, causing even small stresses to build on one another. Causes of chronic strain include:

Improper body mechanics or using the wrong muscle groups for a task, such as repeatedly lifting heavy objects using your back instead of your legs

Improper sports mechanics or techniques, such as habitually gripping a tennis racket too tightly or an incorrect golf swing

Participation in the same exercises in the same way, day after day

Poor posture

Use of the wrong equipment, such as running shoes without the proper support for your foot type
5 0
3 years ago
Read 2 more answers
Mary is 15 years old and has just joined her high school swim team. After the first three months of training and competing, her
Tanya [424]

Answer:

a

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sports anemia is a false anemia and a beneficial adaptation to aerobic exercise, caused by an expanded plasma volume that dilutes red blood cells.

6 0
3 years ago
Who do we typically assume terminates a pregnancy vs. what the actual statistics show?
sveticcg [70]
We typically assume that lower class/income - borderline poverty stricken individuals terminate pregnancies however, the statistics show that these individuals are no more likely to terminate than higher class/income individuals.
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3 years ago
In the human body, the heart lies in front of the spinal cord, which runs down the back of the body. The heart is _______ to the
Valentin [98]
The answer is C I hope this helped
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2 years ago
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