Exam 1: Biology and the Tree of Life

The following experiment is used for the corresponding question(s). -Refer to the accompanying figure. Which one of the following is NOT a plausible hypothesis to explain the differences in caterpillar appearance observed in this population?

Use the following information when answering the corresponding question(s). In 1668, Francesco Redi performed a series of experiments on spontaneous generation. He began by putting similar pieces of meat into eight identical jars. Four jars were left open to the air, and four were sealed. He then did the same experiment with one variation: Instead of sealing four of the jars completely, he covered them with gauze (the gauze excluded the flies while allowing the meat to be exposed to air). In both experiments, he monitored the jars and recorded whether or not maggots (young flies) appeared in the meat. -The best experimental design ________.

Recall the caterpillar experiment in which caterpillars born in the spring looked like flowers, and caterpillars born in the summer looked like twigs. What is the most likely selective advantage for this difference in body shape?

Protists and bacteria are grouped into different domains because ________.

Algae in the genus Caulerpa typically grow to a length of over half a meter and have structures similar to stems, leaves, and roots. Reproduction occurs when adults produce sperm and eggs that fuse to form offspring. Each adult Caulerpa consists of just a single cell, however. Which of the following statements is TRUE?

Agrobacterium infects plants and causes them to form tumors. You determine that tumor formation requires a large amount of the plant's energy for tissue formation. How might this change the number of offspring a plant produces, and what is the most likely explanation for this change?

Which of the following is NOT related to the five fundamental characteristics of life?

Which of the following best describes the logic of scientific inquiry?

Which of the following are qualities of any good scientific hypothesis? I. It is testable. II. It is falsifiable. III. It produces quantitative data. IV. It produces results that can be replicated.

Why is a scientific topic best discussed by people of varying points of view, from different subdisciplines, and representing diverse cultures?

How does a scientific theory differ from a scientific hypothesis?

For many years, no one bothered to test the food-competition hypothesis for why giraffes have long necks. Why?

Which of the following statements best distinguishes scientific hypotheses from scientific theories?

Cotton-topped tamarins are small primates with tufts of long white hair on their heads. While studying these creatures, you notice that males with longer hair get more opportunities to mate and father more offspring. To test the hypothesis that having longer hair is adaptive in these males, you should ________.

Pasteur's experiments proved that ________.

The following experiment is used for the corresponding question(s). -Refer to the accompanying figure. Recall that eggs from the same female were exposed to each of the eight treatments used. This aspect of the experimental design tested which of the following hypotheses?

A controlled experiment is one that ________.