One of the methods used widely to calculate the distance of nearby or closer objects in astronomy is Parallax. The distance of the stars are usually expressed in light years but the unit of distance is parsec or parallax second.
1 Parsec = 3.26 light years
Astronomers are not able to measure the parallax of a star that is a million light years away because the star is too far and the distance with which the start appears to move is too less to be calculated accurately.
Answer:
Primary reinforcer is innate, secondary reinforcer is a stimulus
Explanation:
While a primary reinforcer is innate, a secondary reinforcer is a stimulus that becomes reinforcing after being paired with a primary reinforcer, such as praise, treats, or money.
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Brain-List?
Identify the byproduct of lactic acid fermentation. (1 point)
A:oxygen
B:lactic acid ✅
C:carbon dioxide
D:pyruvic acid
Help!
Answer:
In the United states, most tornadoes are classified as intense low pressure funnel clouds that draw in air.
Answer:
No energy would be produced for the cell since cellular respiration wouldn't occur. Proteins would not be made. All the organelles would bump into each other and they would not be held in place. ... Controls the cell's activities.
Explanation: