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MArishka [77]
3 years ago
5

How will distinguish between natural and artificial fibres by observing the smell produced when burnt?​

Biology
1 answer:
slava [35]3 years ago
8 0

Answer:

Natural fiber smell like paper whereas artificial fiber smells like an acid.

Explanation:

We can distinguish between natural and artificial fibers by observing the smell produced when burnt because both produces different types of smell when burnt. When the artificial fibers are burn, it produces acid or chemical like odor and leaving a plastic like bead while on the other hand, when the natural fiber burn, it produces smell of burning paper or hair and leaving ash of soft and grey colour. Natural organic fibers burn rapidly with a yellow flame.

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14. The average brain weighs about
andrew11 [14]

Answer:

A. three pounds

Explanation:

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8 0
3 years ago
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which group of animals has existed the longest? a. tubulidentates b. perissodactyls c. artiodactyls d. sirenians
AleksAgata [21]
The correct answer is C. Artiodactyls

They've been around more than the others and have existed for some 55 million years.
7 0
3 years ago
Consider this ecological pyramid found in the Great Lakes ecosystem. Ecological pyramids are diagrams that are used to show how
PtichkaEL [24]

Answer:

Ecological pyramids are diagrams that are used to show how much energy, the number of organisms, or how much biomass may be found at each trophic level of all the food webs of a community. Note that the autotrophs are always placed at the base of the pyramid.

Explanation:

6 0
3 years ago
ou find some rather strange plants in your backyard. They consist only of thin, pale yellow stems that are wrapped around other
deff fn [24]

Answer:

Parasitic

Explanation:

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5 0
3 years ago
What amino acid is carried by tRNA with anticodon, GUA?
astra-53 [7]
Hi There! :)

<span>What amino acid is carried by tRNA with anticodon, GUA?

</span>The mRNA sequence that you have shown above has been given in triplets of bases. These triplets are called codons. Therefore the amino acid that tRNA will bring must be complementary to this hence called the anticodon. There is a rule. A always pairs with U (or T if it was a DNA strand) and C always pairs with G. 

<span>For the first two triplets I will do the anticodon sequence then you can finish off : GUA GCC ..... </span>

<span>Each codon or anticodon triplet codes for an amino acid. To find this out published tables are used. All the possible triplets will be on there. You will simply just have to read off the names of the amino acid stated next to it in that grid table. </span>
5 0
3 years ago
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