N an experiment, suppose that the wings of fruit flies were clipped short for fifty generations. The fifty-first generation emerged with normal-length wings. This observation would tend to disprove the idea that evolution is based on
a. inheritance of natural variations
b. inheritance of acquired characteristics
c. natural selection
d. survival of the fittest
Inheritance of acquired characteristics. Thus, option "B" is correct.
<h3 /><h3>What is inheritance of acquired characteristics?</h3>
For fifty generations wings of fruit flies were clipped. Hence they acquired this trait in their lifetime and not genetically. If acquired characteristics were capable of passing on to next generation, 50 generations would have been enough to inculcate this clipped wing trait in fruit flies. Despite it, the fifty-first generation did not have clipped wings.
Hence evolution can not occur without genetic variation. A character simply acquired in a lifetime does not create a difference in germ cells and hence is not enough to be passed on to next generation or cause evolution
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Answer:
½ c raw red bell pepper (190 mg per cup)
1 medium orange (96 mg per cup)
½ cup cooked broccoli (81 mg per cup, uncooked)
¾ cup tomato juice (44 mg per cup, 33 mg in 3/4 cup)
Explanation:
Even if the reference measurements is 1 cup the proportion of vitamin C is maintained when half a cup of the measure is used.
As I do not know the size of the orange I am considering that half an orange is equal to half a cup.
Brococoli is cooked and Vitamin C is vulnerable to the cooking process and breaks down easily. So its vitamin C content will vary depending on how it was cooked and how long it lasted.
Answer:
Same Phase at room temp
Explanation:
Here we have a metal and two nonmetals (sulfur and iodine).
They are all solid at room temperature. Metals form cations and are good conductors of electricity. They are not from the same family, therefore, they do not have the same number of valence electrons.
The statement above is TRUE. Puncture wounds refers to an injury that is caused by piercing of skin; a small hole is usually present. Puncture wounds do not usually bleed excessively but most times tissues and skin are crushed. Punctured wound can be superficial or deep.
