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hram777 [196]
3 years ago
14

Multicellular organisms have five levels of organization ranging from simplest to most complex. The simplest level is the cellul

ar level. This is an image of one type of cell found in your body: a cheek cell. You are the most complex level: you are an organism. List the five levels of organization, from simplest to most complex. Describe each level with one or two sentences. Give an example at each level.
Biology
2 answers:
Mazyrski [523]3 years ago
8 0
The most simple level of organization which is seen in the animals is cellular ex (poriferans) they actually have cells which don't incorporate to form any such tissue they are the primitive ones from Kingdom animalia secondly there is tissue level organization in hydras in which they have tissue to function third is organ level organization where they have organs to carry out their metabolism then there is organ systems in which they have systems like respiratory and other .. lastly the most complex that we human have many more systems including nails and hairs
77julia77 [94]3 years ago
4 0
Cell - Egg Cell
Tissue - Muscle tissue
Organ - Lung
Organ system - Respiratory system
Organism - Dog
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The what produce bioluminescent molecules
Reil [10]

Answer:

bioluminescent-from the word you get bio-somthing with connection of biology also luminous-something deal with light hence what bioluminescent molecules are living organism eg of special chemical are luciferin and luciferase and photoprotein

4 0
3 years ago
(a) Identify the most likely mode of transport across the membrane for substance L. Explain how information provided helps deter
Viefleur [7K]

Active transport occurs against the electrochemical gradient. It needs energy to move molecules from the lower concentration side to the higher concentration side. <em>The mode of transport is </em><u><em>active transport. </em></u>

-------------------------------------------------

There are three main different types of transport across the membrane

  • Simple diffusion ⇒ <em>Does not need energy to occur</em>
  • Facilitated transport ⇒ <em>Does not need energy to occur</em>
  • Active transport ⇒ <em>Needs </em><em>energy </em><em>to occur</em>

Active transport is the transport of molecules that move <em>against the </em><em>electrochemical gradient</em>, so it does <em>need energy </em><em>to happen</em>.

Molecules move from the lower concentration side to the higher concentration side of the membrane.

Carrier proteins are in charge of active transport. The needed energy might proceed from the ATP molecules or the membrane's electric potential.

In the exposed example, a scientist wants to determine how substance L enters a cells in a culture.

  • The cells maintain a <u>120 mM </u><u>intracellular concentration</u><u> </u>of substance L.
  • Varying external concentrations of substance L (10 to 100 mM) in culture medium (Table 1).

Table 1. Rate of entry of substance L into mammalian cells in culture

<em><u>External concentration of substance(mM)      Rate of entry of substance L </u></em>

                     10                                                                     5%

                     20                                                                    25%

                     30                                                                    45%

                     40                                                                    65%

                     50                                                                     80%

                     60                                                                     90%

                     70                                                                      95%

                      80                                                                    100%

                      90                                                                    100%

                      100                                                                   100%

<em>Now, we need to identify the most likely </em><em>mode of transport </em><em>across the </em><em>membrane </em><em>for substance L, and explain how information provided helps determine the most likely mode of transport.</em>

We know that the intracellular concentration is 120mM.

As we can see, this concentration exceeds all of the culture media concentrations. Yet, the substance keep moving into the cell.

As the concentration inside the cell is always higher than the concentration outside, we can assume that this is <u>not passive transport </u>because the molecule transport is going against its concentration gradient.

Hence, the remaining option is <u>active transport.</u> And as said before, we can see it because the substance keeps crossing the membrane toward the cell interior despite its concentration being higher in the interior of the cell than in the exterior.

-------------------------------------------------------------

Related link: brainly.com/question/19098496?referrer=searchResults

6 0
3 years ago
The pertussis toxin was found to interfere with the ligand-binding site in G-protein coupled receptors. At which point in the ce
rusak2 [61]

Answer: c. signal amplification

Explanation:

The uncoupling of the G-protein and inhibiting of the signal amplification are the two affects of the pertusis toxin. It is released by the bacteria called <em>Bordetella pertusis. </em>The G-proteins are affected by the action of pertusis toxin. The production to the excess level of cAMP due to the conversion of ATP into cAMP the ribosylation of the ADP molecules occurs due to pertusis toxin. This leads to the damage of G-proteins.

3 0
3 years ago
A 1475 kg car with a speed of 66.5 km/h brakes to a stop. How many cal of heat are generated by the brakes as a result?
SpyIntel [72]

Answer:22.180

Explanation:divide the two together then use the first three number after the decimal.

.

8 0
3 years ago
Read 2 more answers
Please help not to sure on this one thank you
emmainna [20.7K]
In my opinion the best sounding answer is C I hope this helpes<span />
5 0
3 years ago
Read 2 more answers
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