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Ann [662]
3 years ago
5

What factor limits the number of eclipses per year?

Biology
1 answer:
BlackZzzverrR [31]3 years ago
7 0

Answer:

The tilt of the moon's orbit around the earth

Explanation:

On average of twice a year, throughout it's orbit, the moon will create a 180° angle with the Earth making the Earth's shadow visible on the surface of the moon causing a solar eclipse.

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HELP PLS ALL QUESTIONS GIVING BRAINLIEST!
tresset_1 [31]

Answer:

Explanation:

Diagram included below.

1.) 4 chromosomes. Daughter cells are not identical due to recombination (i.e. crossing over).

1.) 2n=4

2.) Cells produced by meiosis are haploid. With just one chromatid.

Explain: Meiosis I separation of homologous chromosomes but sister chromatids stay together. Meiosis II sister chromatids separate, making haploid cells with non duplicated chromosomes.

3.) Germ cells have 46 chromosomes. Gametes have 23.

4.) Meiosis occurs in testes for men and ovaries for women. Mitosis occurs everywhere, basically any cell that isn't a reproductive cell.

5.) Recombination, genetic information is randomly shuffled. Events like crossing and the random orientation of homologue pairs make the possibilities endless. Remember sperm only gets half of the man's DNA, which half is random.

6.) After fertilization you get chromosomes from both mom and dad. The two haploid cells fuse and make a diploid cell.

7 0
3 years ago
Model: Use the Punnett squares below to model each parent combination. After filling in each Punnett square, predict the percent
Katarina [22]

Answer:

cross 1: 75% black    25% white    

cross 2: 50% black  50% white offspring    

Explanation:

Cross 1

Heterozygous black  x    heterozygous black

            F        f  

F         FF       Ff

f          Ff        ff  

75% black    25% white    

Cross 2

Heterozygous black x   homozygous white

          F         f

f        Ff        ff

f        Ff        ff

50% black  50% white offspring        

6 0
3 years ago
Complete the kingdom chart below​
Julli [10]
You didn’t post the chart
4 0
3 years ago
Read 2 more answers
Sedimentary rock form by
iVinArrow [24]
Your answer is B. pressure and cementation.

If you look at a sedimentary rock, you see that there is layers.

Hope this helps and have a nice day!!!

- Moon
4 0
3 years ago
What book did Darwin propose that evolution occurs by means of natural selection
lozanna [386]
Origin of species by means of natural selection
4 0
4 years ago
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