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Makovka662 [10]
3 years ago
10

6. The organic compounds in living things are organized into groups: carbohydrates, lipids, proteins, and nucleic acids. Which t

wo groups of compounds do living things most commonly use as an energy source?
(A carbohydrates and lipids)
B proteins and nucleic acids
C proteins and carbohydrates
D lipids and nucleic acids


7. Which statement is true about the cells in multicell organisms?
(A They usually have certain special functions. )
B They are prokaryotic cells.
C They can all turn into the same kind of cell if needed.
D They are all identical.


8. Which statement about energy is true for all living things?
A Energy comes only from sunlight.
B Plants convert ATP into glucose for energy.
(C Organisms require energy for survival.)
D Energy cannot be transferred from one organism to another.
Biology
2 answers:
grigory [225]3 years ago
7 0

Answer:

number 8 is b because when you eat plants or animals, it get transfred to glucose which is then transfered to atp. Think about it this way, when you are sick, you dont just go outside in the sun to recharge and then you suddenly get  better, and energy, you have to rest and eat certain foods that will restore your ATP

Explanation:

yulyashka [42]3 years ago
5 0

number 8 is b because when you eat plants or animals, it get transfred to glucose which is then transfered to atp. Think about it this way, when you are sick, you dont just go outside in the sun to recharge and then you suddenly get  better, and energy, you have to rest and eat certain foods that will restore your ATP levles.

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How does CRA-cAMP positively regulate the lac operon?
slavikrds [6]

Answer:

The CRA-cAMP complex increases the rate of expression of lac operon when glucose is absent and lactose is present as nutrient.

Explanation:

CRP is the catabolite gene activator protein that forms a complex with cAMP. The CRP-cAMP complex facilitates the binding of RNA polymerase to the promoter region of the lac operon. This robust binding as stimulated by CRP-cAMP complex is followed by the formation of open complex and initiation of gene expression.  

Hence, the CRP-cAMP complex positively regulates the lac operon and increases its expression when glucose is not present.

5 0
4 years ago
What happened to the giant landmass that Wegener described
fenix001 [56]

Explanation:

The giant landmass described by Wegener in his continental drift hypothesis has broken down into different slabs and they have moved to new positions. The giant landmass is called Pangaea. Pangaea is a supercontinent believed to have produced the continents today.

  • The break up of the supercontinent started about 175million years ago.
  • Today, it is understood that the concept of plate tectonics provides an insight into how the supercontinent have broken down and migrated to their present position today.
  • Plate tectonics also provides a mechanism that provided motion for the plate.
  • Wegener from his observation suggested that the continent could easily fit into a single supercontinent like the pieces of a puzzle.
  • He also suggested evidence from across the various continents to back up his claim.

Learn more:

Wegener brainly.com/question/5002949

#learnwithBrainly

6 0
3 years ago
Read 2 more answers
As her professor distributed the mathematics test to the class, Blair's heart started to pound and her palms began to sweat. The
Cerrena [4.2K]

Answer:

sympathetic nervous system

Explanation:

The sympathetic nervous system is part of the autonomous nervous system which controls the involuntary body functions as heart rate, breath rate, perspiration etc. The sympathetic nervous system is specifically responsible for the increase in the function of body functions when the body perceives a threat. When faced with a threat or distress, the sympathetic nervous system initiates physiological reactions known as the “fight or flight” response, thereby increasing the body’s alertness to such threat. Examples of increased body functions or “fight or flight response” include increased perspiration and increased heart rate, as exhibited by Blair.

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How do the different levels of body organization work together so your body can function?
prisoha [69]

Answer: The human body is organized at different levels, starting with the cell. Cells are organized into tissues, and tissues form organs. Organs are organized into organ systems such as the skeletal and muscular systems

Explanation:

6 0
4 years ago
Which of the following examples poses the greatest potential threat to an ecosystem’s biodiversity?
amid [387]

Answer: Option B

Explanation:

A non native species is greatest threat to biodiversity. The species that are not present in the particular place and are introduced in the biodiversity by any means whether it is intentional or unintentional is known as invasive species or non native species.

The non native species of bees is introduced to prey on the fire ants can be a threat to biodiversity as it can use the resources available for the native species.

The effect of the non native species on the native species is not predictable on the species that is already present there.

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3 years ago
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