Select the true statementabout unmyelinated axons:A. action potentials occur everywhere along the length of the axon, and propagation is faster than in myelinated axons. B. action potentials occur everywhere along the length of the axon, and propagation is slower than in myelinated axons. C. action potentials occur only at some points along the axon, and propagation is fasterthan in myelinated axons. D. action potentials occur only at some points along the axon, and propagation is slower than in myelinated axons. E. Unmyelinated axons do not exhibit action potentials.

Sea levels are rising due to climate change while increasing numbers of people are moving into coastal areas. to accommodate more people, there has been increased construction of beachfront resorts and condominiums. how is this impacting sea turtle numbers and biodiversity and why? a. the increased human population in coastal areas has meant that more food is available to the turtles (e. g., dropped food, waste from restaurants), which has led to an increase in the numbers and diversity of sea turtles. b. there has been very little change in the numbers and biodiversity of sea turtles because the planet is so vast that they can simply relocate to less crowded beaches. c. this has resulted in a decrease in numbers and diversity of sea turtles because it is restricting available nesting sites, and hence reproduction. d. this has resulted in an increase in numbers and diversity of sea turtles because people are around to protect them from natural predators.

Which of the following types of pollution is most responsible for large numbers of deaths worldwide because of unsafe drinking water? (a) nutrient pollution (b) thermal pollution (c) pathogen pollution (d) sediment pollution

As a result of climate change earths temperature is rising and sea ice is melting what is a likely effect? answer : populations of walruses and polar bears will decline