Explain this statement: "There is bias in the fossil record." What will be an ideal response?
Concepts to Consider: Animals with hard parts make better fossils; aquatic organisms are more likely
to be fossilized; few organisms from moist tropical terrestrial habitats form fossils.
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Worldwide, decay of organic matter is important to the global carbon cycle because it ____ tens of
billions of tons of carbon dioxide each year.
a. removes from the atmosphere b. prevents the planet from losing to space c. returns to the atmosphere d. prevents plants from having access to e. releases to space
What is meant by the term antiparallel?
What will be an ideal response?
The organizational phases of development are regulated by
A. morphogens and transcription factors only. B. segmentation genes. C. morphogens. D. transcription factors. E. morphogens, transcription factors, and segmentation genes.
What maintains cell shape, anchors organelles in place, and moves materials within a cell?
A) cytoskeleton B) hydrogen bonds C) Golgi complex D) cilia