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Serggg [28]
3 years ago
7

Answer the question !!! What improvements could I make if I wanted to have a better controlled experiment ? And think about some

uncontrolled variables that may have affected the data ?? Please help me !!!!!

Biology
1 answer:
iris [78.8K]3 years ago
3 0
You could have made sure the books were the same weight and your friends could have done it at the same time as you
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The best indicator of the efficiency of exercise is
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I think the answer is D. A good indicator is the resting heart rate. Exercise strengthen your heart and it makes it more efficient. The resting heart rate shows of the heart is pumping blood normally each time it contracts. Having a normal resting heart rate would mean a healthy heart.
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1) What happens to the force between two object, if
Zigmanuir [339]

Answer:

<h3>Heyy mate!</h3>

Explanation:

  1. (i) The gravitational force between two objects is directly proportional to the product of masses of the two objects. So, if the mass of one of the objects is doubled, then the force also gets doubled (it becomes 2 times).
  2. If the mass of one of the objects is doubled, then the force of gravity between them is doubled. ... Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces.
  3. The distance between the objects is doubled and tripled
  4. Force thus becomes one-fourth of its initial force. Force thus becomes one-ninth of its initial force.
  5. Since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. ... If the mass of both of the objects is doubled, then the force of gravity between them is quadrupled; and so on.
<h2>pls mark me as brainliest!!</h2>
7 0
2 years ago
Which would be hotter in the northern hemisphere, sunny day or cloudy day in July? Explain.
Stels [109]
Cloudy day because of solar radiation
3 0
3 years ago
When humans come to a previously pristine environment, they inadvertently bring organisms with them that can be harmful to the l
Studentka2010 [4]

Answer:

INVASIVE species

Explanation:

In biology, an organism is said to be INVASIVE if the organism is foreign to a particular region or habitat and possess the unpleasant ability to proliferate or grow rapidly to the point of competing with local species of organisms.

According to this question, humans are said to introduce organisms that have the ability to harm the local flora and fauna. Hence, these organisms are INVASIVE SPECIES because they are foreign to that place and cause damage in their new environment.

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Lysosomes are organelles that break down waste material so they clean up waste basically so the body system that has the closest function to lysosomes is the excretory system
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