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natali 33 [55]
3 years ago
7

The model below represents a DNA molecule. The presence of which element best provides evidence that nucleotides are the buildin

g material used to make DNA?

Biology
1 answer:
uranmaximum [27]3 years ago
7 0
DNA has 3 components; phosphate, a sugar called deoxyribose (a 5 carbon sugar as opposed to the sugar in the picture which is a 6 carbon sugar - glucose) and a nitrogenous base (adenine, thymine, guanosine or cytosine). So if you look at those 3 pictures, the only one is the nucleotide that's part of the DNA.

Re-read the question: the presence of phosphorous is the answer!!
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Which type of macromolecule combines with proteins to make compounds such as peptidoglycan and other types of identifying compou
mrs_skeptik [129]

Answer:

Answered below

Explanation:

Pepetidoglycans are the structural polymers which make up the cell walls of most bacteria.

It consists of the macromolecule, glycan chains, which are repeating N-acetylmuramic acid and N-acetylglucosamine residues. These glycan chains combine or cross-link with peptide side chains (proteins) to form a mesh-like layer outside the plasma membrane of most bacteria.

Peptidoglycan is the major structural component and the basic unit of the bacterial cell wall and provides protection to the cytoplasmic membrane, mechanical rigidity and also regulates the passage of fluid, amino acids, sugar and ions, in and out of the cell.

3 0
3 years ago
Prokaryotes are classified as belonging to two different domains What are the domains?
choli [55]
These are the two domains Archaea & Bacteria.
4 0
3 years ago
What are local problems that the endangerment of honeybees causes?
Contact [7]

Answer:

Pollination

Explanation: If you have ever seen bee movie, you know that pollen is the most essential ingredient to flowers, which is transported and spread by bee's. if there were no more bees, there would be no way to pollinate the flowers, causing them to wither and die. Fortunately, there are other pollinators, but bees are one of the most important.

3 0
3 years ago
31. The data in the accompanying graph show evidence of disease in the human body. D 38 - - E Body Temperature (°C) 377 А IDOT B
shepuryov [24]

Homeostasis keeps the organism in a dynamic equilibrium within the homeostatic range. <em>A </em><em>disruption i</em><em>n </em><em>dynamic equilibrium </em><em>is indicated by the </em><em>temperature </em><em>change between point C and D.</em> Option C is correct.

<h3>What is homeostasis?</h3>

Homeostasis is the organism's capacity to keep the body in constant internal equilibrium, even when the external environment is oscillating.

Homeostasis is critical to keep the correct internal functioning of the body.

Different functions -blood pressure, body temperature, respiratory rate, and blood glucose levels, among others- are kept in a<u><em> </em></u><u><em>restricted range</em></u><u><em> </em></u>around a reference point, even though external conditions may be changing.

When a sudden change occurs in the internal functioning that disturbs this equilibrium, the organism counters it back by negative or positive feedback.

<h3>Graph interpretation</h3>

In the exposed graph we can see,

  • The restricted range of homeostasis at a constant temperature around 37ºC.

  • Six reference points (A-F) withing 12 hours.

  • Dynamic equilibrium is kept in the range of homeostasis around 37ºC, excepting for point D that reaches 38ºC.  

The references point A, B, and C suggest that during the first 10 hours, approximately, the body was in equilibrium.

A change in the internal functioning broke the equilibrium, rising temperature to 38ºC, out of the homeostatic range.

The organism took the internal values to their original state, and at points E and F, the organism was in equilibrium again.

<em />

<em>A </em><em>disruption i</em><em>n </em><em>dynamic equilibrium </em><em>is indicated by the </em><em>temperature </em><em>change between point C and D. </em>

<em />

<em />

<em>You can learn more about </em><em>homeostasis </em><em>at</em>

<em>brainly.com/question/9087319</em>

<em>brainly.com/question/860558</em>

<em>brainly.com/question/21324446</em>

7 0
2 years ago
Explain how animal cell structures and organelles interact as a system to maintain homeostasis.
RideAnS [48]
Animal cell structures and organelles interact as a system to maintain homeostasis by making sure each part of the system works together.
5 0
3 years ago
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