How would Earth change if the greenhouse effect didn't exist at all?
A) Earth would radiate most of its heat energy into space.
B) All incoming sunlight energy would be absorbed.
C) Earth would be an extremely hot planet that never cools down.
D) Animals and plants would survive comfortably and average temperatures would never change.
A
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Although all Anolis feed on insects and other invertebrates, they have evolved _____ different feeding strategies with correspondingly different sets of morphological traits
A. one B. two C. four D. six E. eight
A researcher has mapped the entire genome of an insect. When scanning the sequences she notices highly repetitive sequences, which contain tandem arrays of short sequences. She is most likely looking at which region of the chromosome?
A. centromere B. telomere C. chromatid D. spindle fiber E. centriole
When green sea turtles travel over 1,400 miles of open ocean to the Ascension Island, they are exhibiting
A. map sense. B. direction sense. C. timely sense. D. compass sense. E. No one knows exactly how they do this.
Suppose a sample of five retail stores' monthly profits are: $4,000, $7,000, $5,000, $3,000, and $1,000. What will the sample variance of stores profits be?
A. $4 million B. $20 million C. $10 million D. $5 million