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4 years ago

11

which of the following is not a characteristic of life? a. maintains homeostasis b. composed of cells c. composed of atoms d. ca

rries out metabolism

1 answer:

Pani-rosa [81]4 years ago

5 0

I believe option C. Composed of atoms is not a characteristic of life.

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In all of the following characteristics, prokaryotes differ from eukaryotes except in cell size. nucleic acids as the hereditary

antoniya [11.8K]

Answer:

Nucleic acids as the hereditary material

Explanation:

The nucleic acids are deoxyribonucleic acids DNA and ribonucleic acids RNA. DNA is an hereditary material that carry information and it is found both in eukaryotic cells and prokaryotic cells. It is found in the nucleus of eukaryotic cells but it is not enclosed in prokaryotic cells.

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3 years ago

What orgenell has a wip like tail that moves<br> the cell

Paraphin [41]

Answer: flagella

Explanation: not sure but i believe it is

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3 years ago

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The spread of roots around a plant is usually greater than the depth of the roots.

valina [46]

The spread of roots around a plant is usually greater than the depth of the roots is a completely false statement. It totally depends on the type of plant in regards to the type of root it will have. Normally there are two kinds of roots and they are taproot and fibrous roots. In case of taproots the main root goes downwards and smaller roots branches out of it. In case of taproots, it is true that the spread of roots is smaller than the depth of the roots. In case of fibrous roots, the spread of roots is greater than that of the depth of the roots. A wig tree is an example of a plant having taproot. in the wig tree the root can go to a depth of around 120 meters.

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4 years ago

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Ronald wakes up feeling tired and with a headache. his physician suspects he may have sleep apnea, a sleep disorder. to make a p

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The doctor uses an EEG or also known as Electroencephalography, this is used to record the activity of the brain, electrically. This will help the doctor make a proper diagnosis of Ronald even if he’s sleeping and to view what type of disorder he has with the given results.

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3 years ago

Power stroke (myosin head bends) coupled with the release of ADP and phosphate, ATP hydrolyzed to ADP and Phosphate and the Myos

svetlana [45]

Answer:

Power stroke (myosin head bends) coupled with the release of ADP and phosphate

Explanation:

Muscle contraction results from myosin heads adhering to actin and attracting it inwards. It uses ATP. Myosin adhers to actin at a binding site of its globular actin protein and adheres at another binding site for ATP (hydrolyzed ATP to ADP, Pi and energy)

ATP binding prompts myosin to detach from actin, ATP is changed to ADP and inorganic phosphate, Pi by ATPase. The energy formed at this process orientates myosin head to a “cocked” direction.

The myosin head goes in the direction of the M line, holding the actin with it in the process causing the filaments to orientate nearly 10 nm in the direction of the M line--- power stroke (force is produced), the sarcomere reduces in length and the muscle contracts.

Note: The power stroke is seen when ADP and phosphate disattaches itself from the myosin head.

At the terminal point of the power stroke, the myosin head as low-energy, followed by ADP release.

The attached image shows the cross-bridge muscle contraction cycle, which is activated by Ca2+ sticking to the actin active site. And how actin moves in relation to myosin.

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4 years ago

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