1) poisons and toxins are most commonly excreted from the body through which organ? a. lung b. heart c. kidney d. brain 2) an example of an elapine snake is a coral snake a. true b. false 3) what ingredient in bread dough can cause poisoning? a. flour b. soy c. sugar d. yeast 4) algae poisoning occurs when the water blooms are light and dispersed away from the shore. a. true b. false 5) sweet clover poisoning involves what symptom? a. discoloration of the skin b. vomiting c. blindness d. hemorrhages

Match the examples to the correct level of organization. 1. system level roses, snakes, puppies 2. organism level roots, stamens, leaves 3. tissue level bone, cartilage, blood 4. organ level heart, veins, arteries

Communication and transportation have improved as a result of scientific advancements. select the best answer from the choices provided of mark this and return save and exit next

Question 1 which of the following allows cells to take in fluids? a. phagocytosis b. pinocytosis c. exocytosis d. receptor-mediated endocytosis question 2 molecules move along their concentration gradient (from areas of high concentration to low concentration) using active transport mechanisms. a. true b. false question 3 which of the following powers active transport (ie. provides the energy for)? a. glucose b. transport proteins c. atp d. phospholipids question 4 what type of lipid is a major component of the plasma membrane? a. cholesterol b. phosopholipids c. proteins d. triglycerides