Amniotic fluid is produced by ____ and then reabsorbed by ____.
A. Amnion then Maternal Tissue; Fetal Swallowing
B. Amnion then Maternal Tissue; Placenta
C. Placenta; Fetal Epidermis
D. Placenta; Fetal Swallowing
E. Placenta; Placenta
Answer; A. Amnion then Maternal Tissue; Fetal Swallowing
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Agricultural application of nitrogen fertilizer
A) reduces global warming by increasing the storage of carbon dioxide in plant biomass. B) increases global warming by increasing microbial respiration in agricultural soils. C) increases global warming by increasing the production of nitrous oxide (N2O) by denitrification in agricultural soils. D) has little to no effect on the carbon cycle.
Which of the following is not a DNA-binding motif?
a. zinc finger b. helix-turn-helix c. leucine zipper d. homeodomain e. These are all DNA-binding domains.
The guard cells surrounding each stoma close the stomata periodically to
1. carry out cellular respiration 2. prevent water loss 3. conduct photosynthesis 4. absorb nutrients
Explain why the autonomic nervous system could also be called the involuntary nervous system? What will be an ideal response?