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lisabon 2012 [21]
3 years ago
11

Explain how machines can be useful if the output force i always less than the input force

Biology
1 answer:
Lady_Fox [76]3 years ago
7 0
Machines can be useful 'cause it converts one type of energy into other.

Hope this helps!
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Brown spotting of the teeth in humans is caused by a dominant X-linked gene. If a man with normal teeth marries a woman with bro
nata0808 [166]

Answer:

25%

Explanation:

The female with brown teeth had a father with normal teeth. Since normal teeth is a recessive trait, the father would have been homozygous recessive for the trait and would have transmitted one recessive allele to the female. Therefore, the female is heterozygous dominant for brown teeth.

Let's assume that the allele for brown teeth is X^B while the one for normal teeth is X^b. The genotype of heterozygous dominant female would be X^BX^b and that of the male with normal teeth would be X^bY.

A cross between X^BX^b and X^bY gives progeny in following phenotype ratio= 1/4 daughter with brown teeth: 1/4 daughter with normal teeth: 1/4 son with brown teeth: 1/4 son with normal teeth. Therefore, the probability of having a daughter with brown teeth is = 25%

7 0
3 years ago
What is scientific method ? what are the steps involved in scientific method​
tatuchka [14]
The scientific method steps are
1. Observe
2. Question
3. Hypothesis
4. Production based on the hypothesis
5. Test
6. Use results to conclude if your hypo was right or not.
7. Make a new hypo

The method is a scientific way of finding the answer to your questions. Or in other words. Gathering knowledge that is based on characterized and developed scientific evidence.
6 0
2 years ago
Give 2 examples of hypotheses that you could test by conducting a controlled experiment.
dybincka [34]

Fish that are raised in clean filtered water are healthier.

Plants grow faster when they are in yellow light.

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3 years ago
Austin builds three pinewood derby cars. Car A weighs 5 ounces, Car B weighs 6 ounce, and Car C weighs 7 ounces. He predicts tha
Margaret [11]
He could race multiple cars with different weight added on them and do multiple races (just to be sure) and see if his theory was correct, if not he should right down what he has learned from his experience! :D

-You'll never learn if u don't try ;)
8 0
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Many plants have a waxy cuticle to prevent them from losing water. This is made of
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The waxy cuticle is made of A.lipids

♡♡Hope I helped!!! :)♡♡
4 0
3 years ago
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