Which of the following correctly reflects the division of the history of life on Earth, from most inclusive to least inclusive?

A. epoch - period - era
B. epoch - era - period
C. era - epoch - period
D. period - epoch - era
E. era - period - epoch


Ans: E. era - period - epoch

Biology & Microbiology

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Sucrose is one of the major contributors to the development of dental caries

Indicate whether this statement is TRUE or FALSE.

Biology & Microbiology

Which of the following is in the correct sequential order?

a) A tadpole is cloned, a better breed of corn is created through artificial selection, a test tube baby is born, Dolly is born b) A better breed of corn is created through artificial selection, a tadpole is cloned, a test tube baby is born, Dolly is born c) A better breed of corn is created through artificial selection, a test tube baby is born, a tadpole is cloned, Dolly is born d) All of the above

Biology & Microbiology

Select the correct sequence for mineral uptake in plants.a. The root cells will initially uptake the minerals.b. The upwards movement of water will carry the minerals towards the leaves.c. Some of the minerals are deposited in the leaf cells.d. The minerals move into the xylem of the vascular tissue.e. Some of the minerals leave the xylem and enter the various tissues that require them.

A. d - b - e - a - c B. d - b - c - a - e C. c- a - d - b - e D. a - b - d - e - c E. a - d - b - e - c

Biology & Microbiology

Suppose a small population of deer is introduced to an island. All of the original males have 6 to 10 points on their antlers, and the average male has 8 points

After several generations, if most males have antlers with 10 points and no males have 6 points, the population has undergone ________ selection. Fill in the blank(s) with correct word

Biology & Microbiology