The process of germination begins with ____.
A. one sperm cell fusing with an egg
B. one sperm cell fusing with the central cell
C. pollen landing on a stigma
D. water soaking into soil
E. water seeping into a seed
Answer: E
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Answer the following statements true (T) or false (F)
1. In osmosis, water moves from an area of higher to lower solute concentration. 2. If an animal has a concentration of one substance in its body identical to the concentration of that substance in the environment, this will also be the case with all other substances (i.e., if it conforms with one substance, it will conform with all substances). 3. Homeostasis refers to the property of maintaining particular physiological variables such as body temperature and solute concentrations absolutely constant. 4. Positive feedback loops are more common than negative feedback loops in animal physiological function.
A bone marrow aspirate is examined for the presence of parasites from a patient who has been traveling in Latin America for several months and who came in contact with a triatomid bug. Which parasite will most likely be identified?
a. Trypanosoma cruzi b. D. fragilis c. Fasciola hepatica d. Chilomastix mesnili
Which of the following are the three domains of organisms?
a. Bacteria, Archaea, and Eukarya b. Eukarya, Taxon, and Kingdom c. Family, Genus, and Species d. Domain, Kingdom, and Phylum
Plant roots require oxygen to absorb nutrients efficiently
1.True 2.False