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olganol [36]
3 years ago
14

In which part of the cell cycle do the mitotic spindles assemble, bind to chromosomes, and move the sister chromatids apart?

Biology
1 answer:
adelina 88 [10]3 years ago
4 0

Answer:

During prophase, the nucleus disappears, spindle fibers form, and DNA condenses into chromosomes ( sister chromatids ). During metaphase, the sister chromatids align along the equator of the cell by attaching their centromeres to the spindle fibers.

Explanation:

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How can the axis help you determine the season that is taking place in the northern hemisphere
luda_lava [24]
The axis is an imaginary line going through the earth so the way the earth is "tilted" would tell you,for example, if the northern hemisphere is tilting toward the sun, it will be summer in the northern hemisphere.
4 0
3 years ago
Match each atom to the corresponding number of electrons it will steal or give away.
Stella [2.4K]

Answer:

1. Fluorine (7 electrons) => c. steals 1 electron

2. Calcium (2 electrons) => a. gives away 2 electrons

3. Oxygen (6 electrons) => d. steals 2 electrons

4. Lithium (1 electron) => e. gives away 1 electron

5. Xenon (8 electrons) => b. neither gives away nor steals any electron

Explanation:

Given the following valence electrons of the atoms listed above, each atom can be matched to its corresponding number of electrons it can steal or give away as they form bonds and attain a stable state:

1. Fluorine (7 electrons) => this will steal 1 electron from another atom to attain a stable state when it comes to make the number of electrons 8.

2. Calcium with 2 valence electrons, will give away this 2 electrons in its outer shell to be stable and form bond with another atom that will accept these 2 electrons.

3. Oxygen with 2 valence electrons, will steal 2 electrons to make the electrons in its outer shell 8, as it bonds with another atom to become stable.

4. Lithium will give away 1 electron to become stable when it combines.

5. Xenon with 8 electrons in its outer shell is in a stable state and kind of inert. It doesn't need to receive or steal any electron from or to any other atom in this state.

7 0
3 years ago
Sleepwalking is most likely to be associated with ________ sleep. nrem-1 sleep rem alpha sleep nrem-3 nrem-2 sleep
erik [133]
<span>I believe the answer is REM alpha sleep. Sleep is a complex  biological process that accompany various physiological changes. Normal sleep is usually classified into non-rapid movement (NRE) and rapid eye movement sleep (REM), where the stages of NREM are followed by REM sleep. REM alpha sleep is a stage of REM that is associated with unique brain wave pattern such that during REM sleep a sleepers brain waves demonstrate characteristics similar to a walking sleep, a combination of alpha, beta and desynchronous waves.</span>
3 0
3 years ago
How does weathering impact deposition of fossils?
timurjin [86]

Answer:

Sediment, Transport and Deposition

Explanation:

The sediment is often formed when weathering and erosion break down a rock into loose material in a source area.

5 0
2 years ago
Which statement is true of the zero tolerance policy?
kodGreya [7K]

Answer:

d

Explanation:

8 0
2 years ago
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