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Kisachek [45]
3 years ago
9

How does the number of chromosomes in an organism's reproductive cells compare to the number of chromosomes in the organism's bo

dy cells?
A.
The reproductive cells have the same number of chromosomes as the body cells.
B.
The reproductive cells have four times as many chromosomes as the body cells.
C.
The reproductive cells have half as many chromosomes as the body cells.
D.
The reproductive cells have twice as many chromosomes as the body cells.
Chemistry
1 answer:
Art [367]3 years ago
6 0

Answer:

answer is d

The reproductive cells of an organism also called the sex cells in either male or female undergo the process of meiosis to reduce the diploid number into a haploid number ie reduction into half the original number.

This is to ensure that during reproduction, with the coming together of haploid sex cells (both haploid sperm and the haploid egg cell). A diploid organism can be produced.

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What do nuclear power plants use as a fuel source? Where is this fuel source obtained?
Sergeu [11.5K]

Only 0.7% of natural uranium is 'fissile', or capable of undergoing fission, the process by which energy is produced in a nuclear reactor. The form, or isotope, of uranium which is fissile is the uranium-235 (U-235) isotope. ... Most is then converted into uranium hexafluoride, ready for the enrichment plant.

8 0
3 years ago
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What is the charge on an electron? ​
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Answer:

Electrons have a negative charge

hope this was helpful (plz vote brainliest, I would appreciate it!) :)

5 0
3 years ago
Which of the following atoms is likely to transfer (and lose) an electron when it forms an ion? Please choose the correct answer
mestny [16]

Answer:

An atom containing 11 electrons

Explanation:

Metal atoms form ions by a loss of electrons whereas non-metal atoms form ions by the gain of electrons.

The group 1 elements or alkali metals form lose their one valence shell electrons when forming ions; Group 2 metals lose two while Group 3 lose three. On the other hand, non-metal atoms found in Group 5, 6, and 7 forms ions by gaining one, two and three electrons respectively.

Using the electronic configuration of atoms, their groups in the Periodic Table can be determined.

An atom containing 6 electrons has the configuration 2,4 and thus belongs to Group 4.

An atom with 2 electrons belongs to Group 2

An atom with 11 electrons has the configuration 2,8,1 and thus belongs to Group 1

An atom with 10 electrons has the configuration 2,8 and thus belongs to Group 8

An atom with 8 electrons has the configuration 2,6 and thus belongs to Group 6.

From the above, it can be seen that an atom containing 11 electrons belongs to Group 1 and will lose an electron to form an ion.

8 0
2 years ago
An isotope has a half-life of 10 minutes. after 20 minutes, what percentage of the original nuclei remain?
Elena-2011 [213]
To solve this, we can use two equations.
t1/2 = ln 2 / λ = 0.693 / λ  
   
where, t1/2 is half-life and λ is the decay constant.

t1/2 = 10 min = 0.693 / λ

Hence, λ = 0.693 / 10 min              -         (1)

Nt = Nο e∧(-λt)    
                
Nt = amount of atoms at t =t time
Nο= initial amount of atoms
t = time taken

by rearranging the equation,
Nt/Nο = e∧(-λt)                  -  (2)

From (1) and (2),

Nt/Nο = e∧(-(0.693 / 10 min) x 20 min) 
Nt/Nο = 0.2500

Percentage of remaining nuclei = (nuclei at t time / initial nuclei) x 100%
                                                     
= (Nt/Nο ) x 100%
                                                      = 0.2500 x 100%
                                                      = 25.00%

Hence, Percentage of remaining nuclei is 25.00%
6 0
2 years ago
Phthalates, BPA, PFOA, and Atrazine are chemicals that don't degrade rapidly, and they are readily taken up by cells in the body
m_a_m_a [10]

Answer:

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Explanation:

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They are correlate with some illness like cancer, thyroid problems and infertility.

7 0
3 years ago
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