A group of scientists that are studying the spread of Lyme disease suspect that it is spreading north due to movement of the tick vector brought about by climate change.  What application(s) below would assist with this study?

A. Geographic information systems
B. Remote sensing and geographic information systems
C. DNA microarrays
D. Remote sensing
E. DNA fingerprinting


Answer: B

Biology & Microbiology

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The change from indirect development to direct development in sea urchins illustrates the following  concepts: (choose all that apply)  

_____  Differences in gene expression patterns can cause major changes in development. _____  An organism can arrive at the same adult body plan in different ways. _____  Changing the mode of development requires evolving a lot of new genes. _____  Urchins have a unique genome that is especially suited to major developmental changes. _____  Once a lineage evolves a mode of development, it becomes “locked in”. _____  Radially symmetric organisms are subject to different evolutionary pressures than bilateral organisms. _____  Chromosomal deletions have major effects on development.

Biology & Microbiology

Which of the following are white blood cells that are capable of engulfing other cells and particles?

a. pathogens b. eosinophils c. phagocytes d. erythrocytes

Biology & Microbiology

Vasoconstriction is a term that refers to the contraction of muscle in the walls of the blood vessels, thus causing the diameter of the blood vessel to decrease. Which one of the following types of muscle would be involved in this contraction?

A) skeletal B) smooth C) cardiac D) both cardiac and smooth E) both skeletal and smooth

Biology & Microbiology

All rain forests are tropical.

Answer the following statement true (T) or false (F)

Biology & Microbiology