Photosynthesis produces O2
1.True
2.False
1
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Aquaporins are ____
a. cells that are specialized for water transport b. transport channels for water c. the entry point of filtrate into a nephron d. transport channels for ions e. the exit channel for urine out of a nephron
What prevents menstruation from occurring in the 10th week when the corpus luteum regresses?
A. The follicle takes over secretion of hCG. B. The follicle takes over secretion of estradiol and progesterone. C. The placenta takes over secretion of estradiol and progesterone. D. The cervix takes over secretion of oxytocin and prostaglandins.
In a search for new antibiotics, a previously unknown organism has been recovered from the soil. It is nonmotile and is composed of long threadlike structures formed from nucleated cells. It is not-photosynthetic and absorbs its nutrients. This organism will most likely be classified among the
A. Eukaryotes (Fungi) B. Archaea C. Eukaryotes (Algae) D. Eukaryotes (Protozoa) E. Bacteria
Over the past 600 million years, the overall trend in the number of species has been ________
Fill in the blank(s) with correct word