What two factors largely determine the diversity of species on an island?
A) migration and replication
B) immigration and replication
C) viability and extinction
D) migration and extinction
E) replication and extinction
Answer: D
You might also like to view...
Europe has recently experienced a major influx of migrants fleeing civil tumult from which country?
A) Mexico B) Syria C) Saudi Arabia D) South Africa E) China
If the small projections on the roots of plants, "root hairs," are removed, which of the following is likely to be the most direct effect on the plant?
a. Excess water will build up in the stem b. Transport of sugars throughout the plant will stop c. Carbon dioxide will not be able to reach the leaves d. Water and minerals will not be absorbed from the soil
What does a scientist do when he or she wants to understand how some natural process works?
A. Perform an experiment B. Publish a paper C. Establish a scientific theory D. Use a preconceived idea
You are given an upper-level map that shows the position of two jet streams. You would be able to tell which is which, because the subtropical jet stream forms to the ____________________ of the polar-front jet
Fill in the blank with correct word.