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Ilya [14]
3 years ago
10

Which experience led an engineer to invert velcro

Biology
1 answer:
densk [106]3 years ago
4 0
De Mestral first conceptualized hook and loop after returning from a hunting trip with his dog in the Alps in 1941.After removing several of the burdock burrs (seeds) that kept sticking to his clothes and his dog's fur, he became curious as to how it worked. He examined them under a microscope, and noted hundreds of "hooks" that caught on anything with a loop, such as clothing, animal fur, or hair. He saw the possibility of binding two materials reversibly in a simple fashion,if he could figure out how to duplicate the hooks and loops.
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Why is it important to control the pH level in the body
Anastasy [175]

Answer:

<h3><em><u>Most diseases, illnesses, and bad bacteria thrive in an over acidic environment.</u></em></h3>

Explanation:

It is important for us to assist our body in creating and maintaining a healthy pH ratio of 70:30, alkaline to acid.

<em>Most diseases, illnesses, and bad bacteria thrive in an over acidic environment. When pH levels are unbalanced, it is mostly in the case of being too acidic</em>.

8 0
3 years ago
If you find your tire off of the roadway and on a low or unstable shoulder answer
Viktor [21]
<span>Slowly reduce your speed by taking foot off gas pedal, lightly applying brakes to gain control. Once under control Proceed to steer back onto roadway. One may have to accelerate to get up and over low shoulder making sure it is clear to return to roadway.</span>
4 0
4 years ago
Assuming the human genome is 3×109 bp and that the average insert size in the genomic libraries is 100 kb, how frequently will a
SashulF [63]
<span>A clone representing myostatin would be found in the genomic library made from muscle approximately one time out of every sixty thousand. Under the given conditions, the human genome and average insert size, the frequency of that particular type of clone can be estimated to be very near the probability of 1/60,000. This can be expressed either in fraction form or in descriptive words and maintain the same level of meaning.</span>
3 0
3 years ago
What family of KBOs does Orcus belong to?
Shtirlitz [24]

Answer:

Pluto

Explanation:

Orcus is a plutino, a trans-Neptunian object that is locked in a 2:3 resonance with the ice giant Neptune, making two revolutions around the sun to every three of Neptunes. This is much as pluto, except that the phase of Orcus's orbit is opposite from Pluto's: Orcus is at aphelion when pluto is at aphelion when Pluto is at perihelion and vice versa. This was a major consideration in selecting its name, as deity Orcus was the Etruscan equivalent of the Roman Pluto, and later becamean alternate name for Pluto

6 0
3 years ago
HELP HELP HELP PLZ!
Mekhanik [1.2K]

Hi,

Let us get an introduction of the problem first, Incomplete dominance is a pattern of inheritance in which, offspring from the cross of two parents shows a phenotype that is not like either parent but in between both.

For example: Let us take the example of Oompah's hair that can be either red or purple or blue. As described in the question, Red is dominant so let us denote allele for Red hair with R. The other hair color is blue that is recessive, let us denote its allele with r. Now, there is another intermediate phenotype that is purple, let us denote it with Rr because it is derived through a combination of R and r.

Now, here is the key for all possible genotypes and phenotypes of Oompahs. There are only three possible genotypes and phenotypes for the hair color.

Genotype: Phenotype

RR             : Red hair

Rr              : purple hair

rr                : Blue hair

This is because no allele can fully express itself over the other. So is we cross a red hair Oompah with Blue hair Oompah, let us see what will happen:

                                                  RR x rr

Gametes:                              r        and        R

                                       rr:     Rr :     Rr     :  RR

It means that 25 % of the offspring will have red hair, 50% will have contain purple hair and 25 % will have blue hair.

RR:              Red hair      25%

Rr:               Purple hair   50 %

rr:                 Blue hair     25%

Hope it helps!

8 0
4 years ago
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