Explain how scientists use recombinant dna technology to produce the drug insulin. be sure to also explain why a gene from one organism can be expressed by another organism.

Types of scientific inquiry that biologist engage in that cannot be completely controlled

Several billion years ago which gas was the least prevailant in the atmosphere

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.