Review Questions
4. Which type of animal maintains a constant internal body temperature?
- endotherm
- ectotherm
- coelomate
- mesoderm
5. The symmetry found in animals that move swiftly is ________.
- radial
- bilateral
- sequential
- interrupted
6. What term describes the condition of a desert mouse that lowers its metabolic rate and “sleeps” during the hot day?
- turgid
- hibernation
- estivation
- normal sleep pattern
7. A plane that divides an animal into equal right and left portions is ________.
- diagonal
- midsagittal
- coronal
- transverse
8. A plane that divides an animal into dorsal and ventral portions is ________.
- sagittal
- midsagittal
- coronal
- transverse
9. The pleural cavity is a part of which cavity?
- dorsal cavity
- thoracic cavity
- abdominal cavity
- pericardial cavity
10. How could the increasing global temperature associated with climate change impact ectotherms?
- Ectotherm diversity will decrease in cool regions.
- Ectotherms will be able to be active all day in the tropics.
- Ectotherms will have to expend more energy to cool their body temperatures.
- Ectotherms will be able to expand into new habitats.
11. Although most animals are bilaterally symmetrical, a few exhibit radial symmetry. What is an advantage of radial symmetry?
- It confuses predators.
- It allows the animal to gather food from all sides.
- It allows the animal to undergo rapid, purposeful movement in any direction.
- It lets an animal use its dorsal surface to sense its environment.
12. Which type of epithelial cell is best adapted to aid diffusion?
- squamous
- cuboidal
- columnar
- transitional
13. Which type of epithelial cell is found in glands?
- squamous
- cuboidal
- columnar
- transitional
14. Which type of epithelial cell is found in the urinary bladder?
- squamous
- cuboidal
- columnar
- transitional
15. Which type of connective tissue has the most fibers?
- loose connective tissue
- fibrous connective tissue
- cartilage
- bone
16. Which type of connective tissue has a mineralized different matrix?
- loose connective tissue
- fibrous connective tissue
- cartilage
- bone
17. The cell found in bone that breaks it down is called an ________.
- osteoblast
- osteocyte
- osteoclast
- osteon
18. The cell found in bone that makes the bone is called an ________.
- osteoblast
- osteocyte
- osteoclast
- osteon
19. Plasma is the ________.
- fibers in blood
- matrix of blood
- cell that phagocytizes bacteria
- cell fragment found in the tissue
20. The type of muscle cell under voluntary control is the ________.
- smooth muscle
- skeletal muscle
- cardiac muscle
- visceral muscle
21. The part of a neuron that contains the nucleus is the
- cell body
- dendrite
- axon
- glial
22. Why are intercalated discs essential to the function of cardiac muscle?
- The discs maintain the barriers between the cells.
- The discs pass nutrients between cells.
- The discs ensure that all the cardiac muscle cells beat as a single unit.
- The discs control the heart rate.
23. When faced with a sudden drop in environmental temperature, an endothermic animal will:
- experience a drop in its body temperature
- wait to see if it goes lower
- increase muscle activity to generate heat
- add fur or fat to increase insulation
24. Which is an example of negative feedback?
- lowering of blood glucose after a meal
- blood clotting after an injury
- lactation during nursing
- uterine contractions during labor
25. Which method of heat exchange occurs during direct contact between the source and animal?
- radiation
- evaporation
- convection
- conduction
26. The body’s thermostat is located in the ________.
- homeostatic receptor
- hypothalamus
- medulla
- vasodilation center
27. Which of the following is not true about acclimatization?
- Acclimatization allows animals to compensate for changes in their environment.
- Acclimatization improves function in a new environment.
- Acclimatization occurs when an animal tries to reestablish a homeostatic set point.
- Acclimatization is passed on to offspring of acclimated individuals.
28. Which of the following is not a way that ectotherms can change their body temperatures?
- Sweating for evaporative cooling.
- Adjusting the timing of their daily activities.
- Seek out or avoid direct sunlight.
- Huddle in a group.