NLN -PRACTICE TEST SCIENCE PAX EXAM ALL QUESTIONS WITH CORRECT ANSWERS

An organism with chloroplast in its cell is probably a CORRECT ANSWER autotroph autotrophs CORRECT ANSWER are organisms that produce their own food from inorganic substances, plants are autotrophs heterotrophs CORRECT ANSWER obtain their food by consuming plants or other animals. They are also referred to as consumers. Primary consumers may be herbivores herbivores CORRECT ANSWER plant eaters omnivores CORRECT ANSWER plant and meat eaters Secondary consumers CORRECT ANSWER are carnivores, meat eaters, or omnivores that eat herbivores. Tertiary consumers are carnivores that eat CORRECT ANSWER other carnivores or omnivores. What property of water allows someone to fill a glass slightly above the rim without the water flowing over? CORRECT ANSWER surface tension Water molecules are polar. This is due to the fact that oxygen draws the electrons in the molecule toward itself. Thus, there is a negative charge surrounding the oxygen and a positive charge around the hydrogen. The unbalanced charges cause the water molecules to cluster, and this gives the water the properties called surface tension. Surface tension is the attraction between molecules at the surface of a liquid, which allows a glass to be filled above the rim without the water flowing over. The gap between the neurons are called CORRECT ANSWER synapses Which group of chemicals are not normally found in most living things? CORRECT ANSWER silicates Carbohydrates, proteins and nucleic acids (RNA and DNA) are all very important chemicals in living things. Silicates examples are in sand and glass The alimentary canal is associated with the CORRECT ANSWER the whole passage along which food passes through the body from mouth to anus. It includes the esophagus, stomach, and intestines.