The regions that biologists target for protection first are those classified as hot spots. What are the two main features required for a region to be classified as a hot spot?
a. Mild climate, large species diversity
b. Home to species that cannot be found anywhere else, species are under threat of destruction.
c. Harsh environmental conditions, tropical location.
d. Large species diversity, large physical boundaries to the region.
e. Large physical boundaries to the region, species are under threat of destruction.
b
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A disease transferred by indirect contact with a high basic reproduction number and mortality would be an effective biological weapon
Indicate whether the statement is true or false.
A measured heritability of 0.7 means that 70% of the phenotypic variation observed is due to genetic differences within the population
a. True b. False Indicate whether the statement is true or false
The "missing link" between birds and dinosaurs was found when fossils of ________ were unearthed in a German quarry
a. Archaeopteryx b. Phascolarctos cinereus c. Sphenodon d. Saurophaganax
Of the following types of molecules, which can function as both neurotransmitters and hormones?
A) glucocorticoids B) second messengers C) catecholamines D) adipocytes