It is also known that meteorites carry water, in the form of ice, and many carbon containing compounds. ... They heated amino acids without water and formed long protein chains. As water was added and the mixture cooled down, small microspheres were formed. ... He filled his notebooks with records of height, weight, color, claw size, tail length, and other characteristics among members of the same species. ... It is a lot harder for birds to see, catch, and eat moths that blend in with the color of the tree bark than it is for them to spot moths whose color makes a strong contrast with the tre...

• Word Count: 2685
• Approx Pages: 11
• Grade Level: High School

He explains the observation made from 1848 to 1898 of how the butterflies evolve from a light color to a dark color. ... This will cause a mutation since brown eyes is a dominant eye color type. ... In Darwin's theory of natural selection: many offspring, a lot of variety in the offspring, the offspring will compete for food, water, and shelter, and the weak species will die out and the species that live will pass on their traits. ...

• Word Count: 1403
• Approx Pages: 6
• Grade Level: High School

These herbicide tolerant crops will likely lead to more pesticides in our food, drinking water, and the environment. ... Each plant in the traditional method has a unique combination of genes that cause variations in seed size, branching pattern, in height, flower color, fruiting time, or flavor, only the plants with the best genes tend to survive. ...

• Word Count: 1689
• Approx Pages: 7
• Grade Level: Undergraduate

It is not only farmers anyone who has ever taken aspirin or planted flowers or watered there lawn has manipulated nature in a way, but this is only the beginning of genetic manipulation these are just the ideas it was started on. ... In this idea comes a big danger with the technology, because if it was possible to find heart disease it might also be possible to find eye color, or maybe even intelligence or muscle mass, these technologies will obviously be expensive and it may be only the rich that will be able to afford it. ...

• Word Count: 1423
• Approx Pages: 6
• Grade Level: Undergraduate