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Drupady [299]
3 years ago
13

What are the three substances that generally make up paint? describe each part. what are polymers? what is a scanning electron m

icroscope? what are its advantages? what is the pdq? what is it used for?
Biology
1 answer:
pochemuha3 years ago
8 0
The three parts that make up paint are pigments, binders and solvents. Pigments consist generally of organic and non-organic compounds and materials that are added to paint to produce a particular color.<span> Binders are substances that provide support or structure for the pigment and solvents to work. Solvents work to dissolve or disperse these substances into liquid form.
</span>Polymers are a group of atoms that form in repetitious patterns The scanning electron microscope is a microscope that works by shooting beams of electrons at the slide and recording the emissions of the electrons. One advantage is <span>that it has much better magnification than other microscopes
</span>The PDQ is one of the most collaborative ventures to be found in forensic science. <span>Accredited users are given a free copy of the PDQ in exchange for submitting 60 new </span>




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"Scientific knowledge builds upon previous knowledge."
NikAS [45]

<span>The answer is C. This is because the discovery of the cell and its organelles began with the discovery of the microscope in the 17th century. As powerful microscopes were developed over time, the cell organelle become discover-able by different scientists. As other developments emerged, they enabled tagging of elements, hence monitoring of biochemical pathways also became possible.</span>

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5 0
3 years ago
In humans, free earlobe are dominant to attached earlobe, and a straight thumb is dominant to a hitchhikers thumb. Cross two peo
azamat

Answer:

The correct answer is - the phenotypic ratio would be 9:3:3:1.

Explanation:

The two traits that are dominant are free earlobe and straight thumb that are denoted by the E and T on their alternative recessive alleles attached lobe and hitchhiker thumbs denoted by the e and t respectively. The heterozygous condition will be EeTt.

The cross between EeTt and EeTt will produce gametes ET, Et, eT, and et by each. The phenotypic ratio of the cross would be 9:3:3:1, which means 9 out of 16 offspring will be dominant in both trait, 3 will be free lobe and hitchhiker thumb, 3 will be straight thumb and attached earlobe, and 1 will be recessive in both traits. For the cross please check the attached image.

Thus, the correct answer is - the phenotypic ratio would be 9:3:3:1.

4 0
4 years ago
Scientists have detected an asteroid that is 700,000,000 km from Earth. About how many astronomical units is that?
il63 [147K]
4.6 astronomical units. 
4 0
4 years ago
What are the elements of the water cycle?
12345 [234]

Answer:

Evaporation, Convection, Precipitation, and Collection are the main ones.

Explanation:

hope this helps

have a good day

5 0
2 years ago
Read 2 more answers
Help plz I’m doing a lot of work rn and I don’t have enough time to complete this 40pts!!!
marishachu [46]

Answer:

I cant see most of the words

Explanation:

8 0
3 years ago
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