On March 10, 2004, National Public Radio reported that "forests in a remote part of the Amazon are suddenly growing like teenagers in a growth spurt." Though, the radio report added, "This shouldn't be happening in old, mature forests." This unexpected growth could be caused by:
What will be an ideal response?
Increased levels of carbon dioxide such that the forests can conduct more photosynthesis
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Clams, oysters, and scallops are called bivalves because they have
a. a pair of eyes. b. bilateral symmetry. c. a double foot region. d. a shell made up of two halves. e. two sexes.
Refer to the paragraph on scarlet gilia. What is the significance of measuring fruit production?
A) It is a measure of pollination success. B) It is a measure of seed dispersal success. C) It is easier than counting flowers. D) It is an indication of predation on the seeds of the plants.
One of the most critical adaptations of the reptiles in relation to their life on land is the evolution of the
A. amniotic egg. B. allantois egg. C. chorionic egg. D. swim bladder. E. diploid egg.
It would have resulted in a giant cloud of ____ that covered Earth, blocking the sun, and causing ____ to freeze and die.
What will be an ideal response?