Describe a similarity and a difference between meiosis and mitosis

Answers

Answer 1
Answer:

Answer:

The difference between mitosis and meiosis is that....

Mitosis produces two daughter cells with the same number of chromosomes as the parent cell.

Meiosis results in four daughter cells harboring only half of their parent's chromosomes, which underwent recombination.

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How many genes are required todetermine a polygenic trait?A. oneB. two or moreC. several thousand

Found evidence that the continents were joined together at one time.

Answers

Alfred Wegener, is who proposed the idea of Pangaia

Answer:

Alfred Wegener

Explanation:

In 1912 Alfred Wegener (1880-1930) noticed the same thing and proposed that the continents were once compressed into a single protocontinent which he called Pangaea (meaning "all lands"), and over time they have drifted apart into their current distribution.

Ian experienced pain in his leg after a fall, so he goes to the doctor. After an exam, the doctor explains to Ian that he has injured some tissue that connects his leg muscle to bone. What piece of tissue is the doctor describing?A. Cartilage

B. Joint

C. Ligament

D. Tendon​

Answers

Answer:

D. Tendon

Explanation:

D. Tendon is correct

The Sun is best described as...

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light and heat because it keeps you warm and lights up the day
gass in the atmospere 

Which change in a gene pool is occurring in the image below

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macroevolution

Macroevolution occurs within a population. It is True. Macroevolution is a major evolutionary change. It is applied mainly to the evolution of whole taxonomic groups over long periods of time. Unlike microevolution that happens at a smaller degree, macroevolution involves major alterations and modifications. 

A solution at pH 7 contains how many times more hydrogen than a solution at a pH of 10?

Answers

Answer:

Solution of pH 7 contains thousand times more hydrogen than the solution of pH 10.

Explanation:

pH of A substance is given by the negative of the logarithm of concentration of hydrogen ions. It is given by the equation

pH=-log \ [H^+ ]

Here the initial pH is given as 7. We have to calculate the concentration of H^+ ions.

7=- log[H^+ ]  [H^+ ]=10^-^7

The final solution has a pH 10. We have to calculate the concentration of H^+  in this case

pH=-log[H^+ ] 10=-log [H^+ ][H^+ ]=10^-^1^0

Next we have to calculate how many times more is the H^+ ion concentration in the solution of pH 7 when compared to the solution with pH 10.

\frac {10^-^7}{10^-^1^0} =10^3=1000

Thus the concentration of H^+ ion in the solution of pH 7 is 1000 times more than the solution of pH 10.

Final answer:

A solution at pH 7 contains 1000 times more hydrogen ions than a solution at a pH of 10. This is due to the logarithmic nature of the pH scale where each unit difference equals a tenfold difference in hydrogen ion concentration.

Explanation:

The pH value of a solution is the negative logarithm base 10 of the concentration of Hydrogen ions in the solution. The difference in pH from 7 to 10 implies a ten-fold difference for each unit of pH, thus, a difference of three pH units indicates a difference of 103, or 1000 times in hydrogen ion concentration. Therefore, a solution at pH 7 contains 1000 times more hydrogen ions than a solution at a pH of 10.

As a side note, it is important to remember that a lower pH value indicates a higher acidity (more hydrogen ions) and a higher pH value indicates a lower acidity (fewer hydrogen ions).

Learn more about pH Scale here:

brainly.com/question/1433865

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Is the pistil of a flower women or male part

Answers

Hey there!

The pistil of a flower is the female part of the plant. It is the female reproductive part of the flower. It consists of the ovary, a stalk, and the stigma.

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The pistil of a flower is the female structure/part.

Answer: female