The Audubon Christmas Bird Count is an example of

A. using greeting cards with images of rare species to promote conservation.
B. critical mass.
C. citizen science.


Answer: C

Environmental & Atmospheric Sciences

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The Mesozoic Era is called the “Age of Reptiles” because ____

a. there were more reptiles than any other type of animal b. reptiles were the only animals to show evolutionary change c. even though there were more plants than reptiles, plants did not evolve d. reptiles predominated the land-dwelling vertebrate animals e. reptiles dominated the oceans

Environmental & Atmospheric Sciences

Discuss the concept of geologic time and uniformitarianism. What is the geologic time scale? What will be an ideal response?

Environmental & Atmospheric Sciences

The genetic code is well described and all 64 possible codons are accounted for. How do cells insert the ‘twenty first' amino acid selenocysteine?

A) It is encoded by one of the extra serine codons. B) It is encoded by one of the extra leucine codons. C) It is encoded by one of the extra arginine codons. D) It is encoded by one of the stop codons.

Environmental & Atmospheric Sciences

The Kara Kum desert lies within:

A) Afghanistan B) Turkmenistan C) Kazakhstan D) Kyrgyzstan

Environmental & Atmospheric Sciences