What process resulted in the loss of heath hens in North America?
A) competitive exclusion
B) an extinction vortex
C) a mutualism
D) the negative effect of heterozygosity on fitness
B
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In order for muscles to contract, ____ ions need to be released from the sarcoplasmic reticulum
a. sodium b. calcium c. phosphorous d. oxygen e. nitrogen
Functional secondary xylem that conducts water and dissolved minerals is known as:
a. softwood. b. springwood. c. hardwood. d. sapwood. e. heartwood
George is stuck out in the hot, dry desert without any water, and he is sweating a lot. Which of these components of the blood should decrease?
A) plasma B) red blood cells C) platelets D) glucose
Swimming pool granuloma is caused by
A. Mycobacterium avium complex (MAC). B. Mycobacterium kansasii. C. Mycobacterium scrofulaceum. D. Mycobacterium fortuitum complex. E. Mycobacterium marinum.