1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Harman [31]
3 years ago
8

What is an example of a model that describes a natural system?

Biology
1 answer:
Dennis_Churaev [7]3 years ago
8 0
Cells, tree, digestive system, public transportation system, government systems, school systems, families, dog, forest, pond, prairie, communication systems, towns, insect, solar system, weather systems, bird, correctional system, squirrel, soil, etc.
You might be interested in
Propranolol hydrochloride (inderal) is a beta-adrenergic blocker often used as an antianginal, antiarrhythmic, and antihypertens
algol [13]
<span>Inderal blocks beta-adrenergic receptors in the heart, thereby decreasing the influence of the sympathetic nervous system on these tissues. The nurse should assess the heart rate for bradycardia and the blood pressure for hypertension.</span>
8 0
3 years ago
Flow Chart What happens to food and energy when it enters the cell? Finish the description for each organelle. Step 1: Mitochond
torisob [31]

Explanation:

Eukaryotic cells have specialized mechanisms to transport molecules along with membrane-bound organelles like the endoplasmic reticulum that provide a higher surface area for absorption and enable more efficient transportation.

Their structural components (i.e. their makeup) determine their function (what they do). In specific cell types, collected proteins may function as a unit called an organelle. Some organelles are bound by membranes like those that make up the external structure of the cell, with varying compositions of phospholipids and proteins. Several organelles facilitate the digestion of nutrients into metabolites and energy...

  • Step 1: Mitochondria break down food and release energy; In all eukaryotic cells mitochondria are small cellular organelles bound by membranes. The higher concentrations of reactants and solutes, increases metabolic reaction efficiency; these make most of the chemical energy required for powering the biochemical reactions within the cell. This chemical energy is obtained via the breakdown of nutrients from food, and is stored within the molecule ATP. Respiration in the mitochondria utilizes oxygen for the production of ATP in the Krebs’ or Citric acid cycle via the oxidization of pyruvate     (through the process of glycolysis in the cytoplasm) where several metabolites used for building other compounds are produced.
  • Step 2: Lysosomes... Some organelles separate proteins and molecules that may harm the cell by parceling them into membrane-bound organelles for example, proteases bound within lysosomes can break down many structural proteins, and carbohydrates found in food, waste, and cell components
  • Step 3: Vacuoles... Vacuoles are fluid filled organelles which store concentrated amounts of solutes, and waste products. Specialized vacuoles are also used to transport components to the cell membrane for cellular export.
  • Step 4: The endoplasmic reticulum... Most proteins that function in the cytosol (such as actin) or in the nucleus (such as DNA polymerase) are synthesized by free ribosomes. Proteins that function within the endomembrane system (such as lysosomal enzymes) or those that are destined for secretion from the cell (such as insulin) are synthesized by bound ribosomes in the rough endoplasmic reticulum. The rest of the ER, which does not contain ribosomes is called the smooth ER,  and may contain lipids,  enzymes, and other proteins. As a protein destined for the endomembrane system is being synthesized by a ribosome, the first amino acids in the growing polypeptide chain act as a signal sequence. That signal sequence ensures that the ribosome binds to the outer membrane of the ER and that the protein enters the ER lumen.
  • Step 5: Golgi bodies... Like a post office, the golgi complex, or golgi body  recognizes signal sequences and packages these compounds into lysosomes for delivery to their final destination. Lysosomes fuse with the plasma membrane to empty their contents into the extracellular space.

Learn more about cellular life at brainly.com/question/11259903

Learn more about mitochondria at brainly.com/question/8427362

Learn more about mitochondria and similar structures at brainly.com/question/2855039

#LearnWithBrainly

3 0
3 years ago
Briefly explain transcription and translation using the following terms: gene, RNA polymerase, tRNA, mRNA, ribosome, nucleus, co
-BARSIC- [3]

Answer:

take the information in DNA and use it to produce proteins. Transcription uses a strand of DNA as a template to build a molecule called RNA. ... During translation, the RNA molecule created in the transcription process delivers information from the DNA to the protein-building machines

Explanation:

which translates mRNA. tRNA is the link between the two other types of RNA.

3 0
3 years ago
Chemicals used in a food establishment must be:
nlexa [21]
They must be non-toxic ie not chemicals that could poison the customers because of the potential risk of contaminating things which can come into contact with the food like say cutting boards, dishes, utensils, pots, pans and any other similar items.
6 0
4 years ago
A white flower is pp.What is its genotype?
pentagon [3]

Answer:

Explanation:

The genotype is recessive time=1/4 of the offsprings have white flowers!

3 0
3 years ago
Read 2 more answers
Other questions:
  • What is mainly cycled through the processes of photosynthesis and cellular respiration?
    10·2 answers
  • What would happen if you applied saltwater to a plant?
    14·1 answer
  • What two phases of the moon cause the strongest tides?
    12·1 answer
  • Differentiate between plant cell and animal cell
    9·1 answer
  • Fill in the blank.
    12·2 answers
  • How does food move around in a plant ?
    11·1 answer
  • In an energy pyramid, which set of organisms will have the highest population? Why?
    11·2 answers
  • Which compound was abundant in Precambrian Earth’s oceans, before complex life evolved on Earth?
    5·2 answers
  • Which of the following statement is not true?
    13·2 answers
  • Which formation of geographic
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!