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Rama09 [41]
4 years ago
15

Which statement best explains why sound waves cannot travel in space?

Biology
1 answer:
Paul [167]4 years ago
5 0

Answer: Option 3

Explanation: Sound waves cannot travel in space because space is a vacuum, and sound waves require a medium to travel.

Furthermore, sound waves belong to the class of waves called MECHANICAL WAVES: as they require a material medium for their propagation

Options 1, 2 and 4 are inaccurate

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Which is a process that occurs in the water cycle?
Triss [41]

D. All of the above is the correct answer for this question

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3 years ago
ASAP
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I believe that the answer would be heat.
 In reactions that are exothermic, heat energy is released from the energy stored in the chemical bonds of the reactants. 

I do not think that electrochemical reactions necessarily "release" electricity they merely transform chemical energy into electric energy.

Answer: heat

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4 years ago
4. Simple organisms, like yeast and bacteria, can survive in dead zones. Larger, complex organisms like
Oliga [24]

Answer:

anaerobic organisms do not require the presence of oxygen to produce energy in form of ATP, while aerobic organisms require oxygen

Explanation:

Anaerobic organisms produce energy by glycolysis, which is a metabolic pathway that produces ATP by transforming glucose to lactate when oxygen (O2) is limited. Glycolysis produces two (2) molecules of ATP per glucose molecule. Moreover, when O2 is available, aerobic organisms produce ATP by cellular respiration, which includes glycolysis, the Krebs cycle, and oxidative phosphorylation. Cellular respiration is able to produce thirty-eight (38) molecules of ATP per glucose molecule, thereby being more efficient than glycolysis.

5 0
4 years ago
Which nitrogenous bases are needed to complete the DNA strand pictured below?
Paul [167]

Explanation:

Template: T, A, C, G

Pairing: T- A, A-T, C-G, G-C

Answer: adenine, thymine, guanine, cytosine

Further explanation:

Nucleic acids are comprised of smaller units called nucleotides and function as storage for the body’s genetic information. These monomers include ribonucleic acid (RNA) or deoxyribonucleic acid (DNA). They differ from other macromolecules since they don’t provide the body with energy. They exist solely to encode and protein synthesis.

Basic makeup: C, H, O, P; they contain phosphate group 5 carbon sugar, these nitrogen bases which may contain single to double bond ring.

DNA stores all of an organism’s genetic information. Its molecules comprise the nitrogenous bases Guanine, Adenine, Cytosine and Thymine. These pair up as base pairs due to their varied structure- largely influenced by the location of N molecule ;

  • cytosine and thymine are formed from pyrimidines- N at position 1 and 3 of a fused ring;
  • Guanine and adenine are formed from organic compounds called purines (pyramidines fused to another organic ring of imidazole)
  • Each base pair contains a purine and pyrimidine joined via hydrogen bonding e.g. A-T & G-C and are called base complements.

In certain combinations, these bases form codons which act as instructions for protein synthesis. Codons are three nucleotide bases encoding an amino acid or signal at the beginning or end of protein synthesis.

Learn more about transcription at brainly.com/question/11339456

Learn more about DNA and RNA at brainly.com/question/2416343?source=aid8411316

7 0
3 years ago
Explain the method scientest use to study how Earth's atmosphere and climate have changed during the past million years. (brainl
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Answer:

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