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1 year ago

Which of the following are fossil fuels? (choose all that apply.)

Biology

2 answers:

Dafna1 [17]1 year ago

3 0

Answer:

Coal, natural gas, petroleum

Explanation:

Coal, natural gas and petroleum are all fossil fuels.

Scrat [10]1 year ago

3 0

The answers would be coal, natural gas, and petroleum.

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A new food product is being distributed by a company. Researchers determine that the food product contains only carbon, oxygen,

Contact [7]

Answer:

This new food is a carbohydrate

Explanation:

Carbohydrates (also known as saccharide) general formula is CH2On, this means they are molecules that only contain carbon (C), hydrogen (H) and oxygen (O). In the basic form, these sugars are known as monosaccharides, they can combine no form more complex sugars like disaccharide (2), oligosaccharides (2-10) or polysaccharides (>10).

Therefore we can conclude that this new food is a carbohydrate.

I hope you find this information useful and interesting! Good luck!

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2 years ago

How do the resurection of fern, crysts of brine shrimps and tardigrade survive with no water?

ehidna [41]

They survive without water by entering a special mode, otherwise called as shriveling. They can lose even 95% of water in their body and still live, even though they would look like dead plants, they would actually be alive. In the absence of water, tardigrades use a sugar called trehalose, which becomes their source of life until they find some water.

8 0

2 years ago

A very acidic pH level is _____, and a very basic pH level is _____. 1; 13 13; 1

Tanya [424]

A very acidic pH level is 1, and a very basic pH level is 13.

6 0

2 years ago

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A) In how many cases in the genetic code would you fail to know the amino acid specified by a codon if you knew only the first t

Vesna [10]

Answer:

a) 28 cases

b) 3 cases

Explanation:

a) From the table of genetic codes, there are 28 codons that specify more than one amino acid assuming only the first two nucleotides are considered. In these cases, one cannot outrightly specify the amino acid the genetic codes are coding for without knowing the last nucleotide of the codes. For example, UU can be for Phenylalanine or Leucine, CA can be for Histidine or Glutamine, etc.

b) From the table of genetic codes, the first two nucleotides of Arginine can be either of CG or AG, that of Serine can be either of UC or AG while that Leucine can be either of CU or UU. Only in these 3 cases would one fail to know which are the first two nucleotides assuming the name of the amino acids are given.

See the attached image for the genetic code.

7 0

2 years ago

How many atoms of nitrogen are in a chemical formula Ni(NO3)2? O 3 O 2 O 1 O 6

Julli [10]

The answer is 2 because its the outside number and not in the parentheses

7 0

2 years ago

Read 2 more answers