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3 years ago

Populations change naturally over time. Which mechanism is a method of artifical selection rather than natural selection?

2 answers:

4 0

The answer is C) selective breeding. This means that humans are deciding what to breed which means this is not a natural selection, but rather an artificial selection.

Zinaida [17]3 years ago

3 0

Answer:

Explanation:

C) selective breeding

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Some laboratory mice are spotted, due to a dominant gene. Solid color is recessive. A solid color female mouse is mated to a spo

lorasvet [3.4K]

Answer: percentage of mice that will be spotted is 100%, and 0% chance of being solid colored.

Explanation: First, homozygous means each parent have matching chromosomes (Like XX, instead of Xx)

Lets make a punnet square and show the data. We will use 'S' for spotted and 's' for solid

The punnet square shows that the percentage of mice that will be spotted is 100%, and 0% chance of being solid colored.

Hope this helps :)

5 0

2 years ago

Recovering the Romanovs <- your second lab link On the lab page, please navigate using the top and bottom modules. For exampl

77julia77 [94]

Answer:

Explanation:

Who were the Romanovs?The Romanovs were high ranking aristocrats in Russia during the sixteenth and seventeenth centuries,The Romanov was the second dynasty to rule Russia, and also the last ruling Russia from 1613 until the Russian Revolution of 1917

2. Who was Anna Anderson?An impostor who claimed to be Grand Duchess Anastasia of Russia

Who did she claim to be? Anna Anderson had claimed to be the missing be the Grand Duchess Anastasia Nikolaevna of Russia(Anastasia Romanov)

What evidence supported this claim? the evidence that supported her claim was that she had the same hair and eye color,the same height, distinctive body markings, and a deformed foot just as the Romanov princess had.

3. What did scientists find in the burial site? The scientist found nine skeletons.

What did they not find?They did not find two of them which was believe to be that of Princess Anastasia and her brother Prince Alexei

4. What did the mitochondrial DNA testing show? DNA testing showed that it certainly was Nicholas, Alexandra and the three children, these was discovered through the bones found in the grave

What do scientists believe happened to Anastasia?Scientist believed that Princess Anastasia along with her brother Prince Alexei were cremated aright after they were being killed

5. Why do you think it took so long for this mystery to be solved? it took so long for this mystery to be solved because the technology available can not be compare to DNA technology because modern technology and advancement had made it more better and convenient .

What factors played a role? DNA technology played a role

5 0

2 years ago

The head of a giraffe is 2.0 m above its heart and the density of the blood is 1.05 103 kg/m3. what is the difference in pressur

erastovalidia [21]

The giraffe head is higher than its heart so the blood pressure in the head must be lower than in the heart. The pressure is directly related to the density, gravity, and the height. The calculation would be:

<span>P = ρ*g*h
</span>P= 1.05* 10^3 kg/m3 * 9.8m/s2 * 2m= <span>20 580 pascals= 20.58 kpa</span>

8 0

3 years ago

What type of stars are located in the top right of the H - R diagram

mart [117]

Answer:

The main sequence stretching from the upper left (hot, luminous stars) to the bottom right (cool, faint stars) dominates the HR diagram. It is here that stars spend about 90% of their lives burning hydrogen into helium in their cores. Main sequence stars have a Morgan-Keenan luminosity class labelled V.

Explanation:

4 0

2 years ago

Digestive enzymes in your stomach and intestines help digest the food you eat. If you are lactose intolerant and cannot digest m

storchak [24]

Answer:

Lactose intolerance is when your body can't break down or digest lactose. Lactose is a sugar found in milk and milk products. Lactose intolerance happens when your small intestine does not make enough of a digestive enzyme called lactase. Lactase breaks down the lactose in food so your body can absorb it.

Explanation:

6 0

2 years ago

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