A high concentration of eagles that spend several days in a small region is most likely the result of __________.
a. a major predator in the region
b. a big and comfortable perch in a tree
c. a centralized breeding area
d. concentrated food
Answer: d. concentrated food
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If an element has 10 protons, 11 neutrons, and 10 electrons, which expression correctly identifies the element?
A. sodium-20 B. neon-31 C. neon-21 D. sodium-11 E. neon-11
According to linguists, without concepts — words that contain meaning — it would be difficult to think
Indicate whether this statement is true or false.
A Smaller Intrusive lens shaped igneous rock body is called a ________.
a) Stock b) Batholith c) Laccolith d) Dike e) Sill
Shallow water blackout occurs when:
A) voluntary hypoventilation causes a drop in the PaO2. B) cerebral vasodilation causes syncope during ascent. C) a decreasing PaO2 during descent results in syncope. D) a swimmer hyperventilates prior to entering the water.