Which of the following cycles have particles deposit from the atmosphere in both a dryfall and a wetfall?
A) nitrogen
B) oxygen
C) carbon dioxide
D) sulfur
D
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Bacteria are abundant and useful decomposers. What are fungal decomposers able to do better than bacteria?
What will be an ideal response?
The endocrine gland that controls homeostasis in terms of blood glucose levels is the
A. parathyroid gland. B. adrenal gland. C. pineal gland. D. pancreas. E. testis.
Although most biologists believe that many species are becoming extinct each year because of the activities of humans, relatively few species actually appear on compiled lists of extinct species
What is one reason why so few species are listed as extinct? A) Many species are unknown to science and go extinct before they've been described. B) There really aren't that many species that have become extinct. C) Many species aren't listed because they aren't considered important. D) Only extinctions that are naturally caused are listed.
RFLP fragments are short, only 100 bases long.
a. true b. false