COMMONLIT
Text-Dependent Questions
irections: For the following questions, choose the best answer or respond in complete sentences.
1.
PART A: Which of the following identifies the central idea of the text?
A. The Great Depression was a very difficult time for America, and the government
took action to help the economy recover.
The Great Depression could have easily been avoided if Americans had been
more informed on how the stock market and banks operated.
The Great Depression could not have been prevented, as the previous decades
had experienced nothing but growth.
The Great Depression was a horrible economic time for America, but the
government's violation of citizens' rights while helping the economy recover was
much worse.

In addition to seeds, which of the following characteristics are unique to the seed-producing plants? a) sporopollenin b) lignin present in cell walls c) pollen d) use of air currents as a dispersal agent e) megaphylls

Based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?

Rease is an enzyme used by plants to break down urea (a nitrogen-containing compound) into carbon dioxide and ammonia. urease urea > > > carbon dioxide and ammonia ammonia is broken down by plants into a nitrogen source plants need to grow. thus, plants could not use urea as a nitrogen source unless it was first converted to ammonia. in soybean plants there are two different kinds of urease, one produced in the seeds and the other produced in the leaves of the plant. three types of soybean plants were used in a set of experiments: normal soybeans and two mutant strains, one lacking the urease in the seeds only (strain 1) and one lacking urease in the leaves only (strain 2). experiment 1 separate areas in a field were planted with normal, strain 1, and strain 2 soybeans. all types of soybeans appeared to grow, flower, and produce seeds equally well. there were no externally detectable differences among the strains. experiment 2 small pieces of plant leaves of equal weight were obtained from each type of soybean plant and separately placed on media in culture dishes. tissue growing in this way will become an unorganized clump of cells referred to as callus. to provide a controlled nitrogen source, half the tissue samples of each type were placed on media containing urea, and the other half of the samples were placed on media containing ammonia. after 30 days, the weight gain for each of the callus samples was determined. results are shown in the table below.