An airplane altitude capacity is 30,000 feet and it is already at 9,000 feet above ground. It ascends at the rale of 1,750 feet per minute. Assume the plane continues to rise at the same rate. Howmany minutes will it take
the plane to reach its altitude capacity?

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into 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.