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padilas [110]
3 years ago
8

Which force primarily acts on a natural or artificial satellite to keep it in orbit around a planet

Biology
1 answer:
rjkz [21]3 years ago
5 0

Answer:

Gravity

Explanation:

When its altitude is matched by the pull of the Earth's gravity, a satellite circles Earth. The satellite will fly off into orbit in a straight line or crash down to Earth without this equilibrium.

By juggling two things, a satellite retains its orbit: its velocity (the speed it takes to travel along a straight line) and the gravitational force on it that the Planet provides. To resist the greater gravitational force, a spacecraft orbiting closer to the Earth needs more velocity.

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which form of cell division- binary fission or meiosis- poses the lower risk for the transmission of genetic disorders. support
anyanavicka [17]
Meiosis has a lower risk of transmitting genetic disorders because it transmits only half of the parent DNA. So if there is a defect on one allele, there is a 50% chance it will not get into the following generation 
5 0
3 years ago
Neurons have special proteins in their cell membranes that allow them to generate electric current. Are these proteins most like
V125BC [204]

Answer:

Sodium-Potassium pumps (proteins that help neurons generate electricity) are produced by ribosomes on the rough endoplasmic reticulum (ER).

Explanation:

Sodium-Potassium Pump (NA+/K+):

The Na+/K+ Pump is a transmembrane channel protein, responsible for maintaining the concentration gradient of sodium and potassium ions in the intra and extracellular environment. This is achieve by pumping 3 Na+ outside and 2 K+ inside the cell at the cost of one ATP. In neurons, these channels help in generating an action potential across the cell membrane that gives rise to a nerve impulse.

Production of Transmembrane proteins:

All membranes and their proteins are produced by  the ribosomes on the rough ER. The rough endoplasmic reticulum contains the enzymes required for lipid synthesis; and as cell membranes are made of lipids, the ER is the most suitable location for synthesis. Membrane proteins, particularly, transmembrane proteins like the Na+/K+ pump possess hydrophobic surfaces that don't dissolve in the cytoplasm but readily attach to the ER surface from where they can be transported wherever required.

7 0
3 years ago
How many significant digits are in the measurement below?
Pie

Answer:

Non-zero digits are always significant. Any zeros between two non-zero digits are significant. A final zero or trailing zeros in the decimal portion ONLY are significant.

Explanation:

5 0
2 years ago
Why is it possible for bacterial cells to obtain new genetic traits while humans cannot?
wel
<span>Bacterial genome is prone to mutational changes due to its simple nature and less efficient DNA repair mechanisms compared to humans, thus it has more chances of obtaining new genetic traits.</span>
3 0
3 years ago
↓ please help asap! ↓
geniusboy [140]
3) decrease

Without the green house effect, earth would be like a solid ball of ice and rock.
Life as we know it wouldn't exist without greenhouse gases.
The temperature would drop below 0° Fahrenheit!
3 0
3 years ago
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