Forests help to regulate the global climate by
A) releasing oxygen
B) absorbing carbon dioxide
C) absorbing pollutants
D) emitting ozone
E) preventing soil erosion
Ans: B) absorbing carbon dioxide
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Which of the following biomolecules interact with toll-like receptors (TLRs)?
A) bacterial LPS B) immunoglobulins C) major histocompatibility complex proteins D) none of these
What can be said about animal and vegetal poles?
A. When animal pole cells are cultured with vegetal pole cells, some of the animal pole cells become mesoderm. B. When animal pole cells are cultured with vegetal pole cells, some of the vegetal pole cells become mesoderm. C. Isolated animal cells develop as endoderm. D. Isolated vegetal cells develop as ectoderm.
How do planarians survive without a circulatory system? What will be an ideal response?
________ is used as a counterstain to color the _____ _____.
Fill in the blank(s) with the appropriate word(s).