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AVprozaik [17]
3 years ago
5

What is the structure of a DNA molecule called?

Biology
1 answer:
Sergeeva-Olga [200]3 years ago
7 0

Answer:

Double Helix

Explanation:

It is called the double helix for the signature shape that a DNA strand takes.

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What does a pyramid of biomass represent? A. Range of food webs found in one trophic level B. Percentage of energy that's passed
Klio2033 [76]

The pyramid of biomass represents a range of food webs found in one trophic level

A pyramid of biomass refers to graphical representation of biomass that is present per unit area of all the various trophic levels of the ecosystem.

<h2>Further Explanation</h2>

The graphical representation shows the relationship between biomass and trophic level that quantify the biomass that is present in each trophic level of energy community at a given period of time.

There are two types of pyramid of biomass, they include

  • Inverted pyramid of biomass  
  • The upright pyramid of biomass  

Inverted pyramid of biomass: a very good example of inverted pyramid can be seen in a case of pond ecosystem, where major producers in the ecosystem (mass of phytoplankton) will be lower than the mass of heterotrophs, such as insects.  

The upright pyramid: The first thing on the upright pyramid is the producers, such as plants. The plants are present at the bottom level of the pyramid and followed by consumers.

Within the pyramid, the highest level is occupied by the carnivores; they are the lowest quantified amount of biomass. In upright pyramid the total weight of the producers is far more than when the weights of all the consumers are combined.  

However, the main issues with the pyramid of biomass are that every trophic level of the pyramid seems to have more energy than it does.

LEARN MORE:

  • pyramid of biomass brainly.com/question/12655542

KEYWORDS:

  • pyramid of biomass
  • trophic level
  • consumers
  • graphical representation
  • ecosystem
8 0
3 years ago
Read 2 more answers
Science help thank you
DaniilM [7]

Answer:

I think it's d

Explanation:

I remember from a couple years ago I had to answer a question similar to this. I'm 90% sure I chose the last answer.

only choose my answer if you agree.

4 0
3 years ago
Look at the diagram of the cell membrane. Would a cell membrane be able to function in the same
oksian1 [2.3K]

Explanation:

The membrane would be too rigid. The unsaturated fatty acids allow the membrane components to maintain their fluid mosaic structure-the components slip past each other freely and adjust to changes in osmotic pressure within the cell.

Further Explanation:

Lipids consist of fatty acids forming the hydrophobic tail and glycerol forming the hydrophilic head; glycerol is a 3-carbon alcohol that is water-soluble, while the fatty acid tail is a long chain hydrocarbon (carbon-backed hydrogen) of up to 36 carbohydrates.

Their polarity or arrangement can confer hydrophilic and hydrophobic properties on these non-polar macromolecules. Small water molecules can pass through the phospholipid bilayer through diffusion into the extracellular fluid or cytoplasm as a semi-permeable membrane, both of which are hydrophilic and contain large concentrations of polar water molecules or other water soluble compounds. The heads of the bilayer are hydrophilic the bilayer are attracted to water while their water-repellent hydrophobic tails face towards each other- allowing molecules of water to diffuse across the membrane along the concentration gradient.

Other components include:

  • Cholesterol: The comparatively rigid cholesterol anchors other molecules attached to the membrane, maintains membrane stability or structural integrity, and helps to separate some lipids, helping with membrane fluidity at low ambient temperatures.
  • Transmembrane proteins are embedded from the extracellular fluid into the cytoplasm within the membrane, and are sometimes attached to glycoproteins (proteins attached to carbohydrates) that function as cell surface marker.

Learn more about membrane components at brainly.com/question/1971706

Learn more about plasma membrane transport at brainly.com/question/11410881

#LearnWithBrainly

7 0
3 years ago
Choose the correct definition and two examples of radiative energy.
Morgarella [4.7K]

radiative energy is energy in light. Sunlight carries this form of energy, as do other forms of light including X-rays and radio waves.

3 0
3 years ago
Animal cells utilize many different proteins what is the synthesis of proteins in an animal cell
Helga [31]
Protein synthesis do happen in ribosomes that usually is found outside of a nucleus. The process of transferring from nucleus to ribosomes would be transcription. RNA is synthesized during transcription. There is still a possibility it can be in the nucleus though.
3 0
3 years ago
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