Which statement is false?Chimpanzees have their vocal cords situated higher in the pharynxthan in humans.All mammal species can choke (obstruction of windpipe) on food.The fact that we can choke on our food is an evolutionarycompromise that is largely compensated that we have the capacityto speak.Choking is partly a consequence of the fact that there is a spacebetween the posterior end of the soft palate and the dorsal tip of theepiglottis.Salmonella, a gram-negative bacterium, produces an endotoxin that causes food poisoning. What is endotoxin?Secretion of the bacterium that becomes toxic only when itenters the cells of the digestive tract.A toxin accumulated in the wall of the bacteria in his life andthat is released into the host when the bacteria dies.A toxic substance produced by living bacteria and secreteddirectly on the host cells (in the intestine).None of these answers defines an endotoxin.

Salmonella, a gram-negative bacterium, produces an endotoxin that causes food poisoning. What is endotoxin? Secretion of the bacterium that becomes toxic only when it enters the cells of the digestive tract. A toxin accumulated in the wall of the bacteria in his life and that is released into the host when the bacteria dies. A toxic substance produced by living bacteria and secreted directly on the host cells (in the intestine). None of these answers defines an endotoxin.

Salmonella, a gram-negative bacterium, produces an endotoxin that causes food poisoning. What is endotoxin? Secretion of the bacterium that becomes toxic only when it enters the cells of the digestive tract. A toxin accumulated in the wall of the bacteria in his life and that is released into the host when the bacteria dies. A toxic substance produced by living bacteria and secreted directly on the host cells (in the intestine). None of these answers defines an endotoxin.

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter39: The Respiratory System

Section: Chapter Questions

Problem 1VCQ: Figure 39.7 Which of the following statements about the mammalian respiratory system is false? When...

See similar textbooks

Similar questions

The human esophagus and trachea share a passage leading from the mouth and nasal passages, which can cause problems. After reviewing vertebrate evolution in chapter 34, explain the evolutionary basis for this "imperfect" anatomy.
In 1798, a stuffed platypus specimen was delivered tothe British Museum. Reports that it laid eggs createdmuch confusion. To modern biologists, a platypus isclearly a mammal. It has fur and the females producemilk. Young animals have typical mammalian teeth thatare replaced by hardened pads of the “bill” as the animalmatures. Why do you think modern biologists can moreeasily accept that a mammal can have some reptileliketraits than scientists who were considering this animal inthe late 1700s?
Mammals have a particularly good sense of earing thanks to their inner ear which includes three tiny bones. Reptiles, in contrast, have a single inner ear bone. The lower jaw of reptiles is composed of multiple bones while the lower jaw of mammals is a single bone. Fossil and developmental evidence indicate that the inner ear bones of mammals evolved from lower jawbones. This suggests that the inner ear bones of mammals are Mammal skull, including ear bones eardrum Reptile skull, including ear bone eardrum Oa transitional trait a vestigial structure a living fossil an exaptation an analogy MacBook Air DII DD F2 F3 F4 F5 F6 F7 F8 F9 F10 FV 23 24 % & 3 4. 6 7 8 U D F G H J K ~の * 00 O OO
Figure 39.7 Which of the following statements about the mammalian respiratory system is false? When we breathe in, air travels from the pharynx to the trachea. The bronchioles branch into bronchi. Alveolar ducts connect to alveolar sacs. Gas exchange between the lung and blood takes place in the alveolus.
Explain how ventilation in bird lungs differs from that in mammalian lungs, including the advantage of the avian system over the mammalian one. please help with eamples
Mammals have brains that are more complex than those offish and amphibians, particularly in terms of expansion of thecerebral cortex. Does this increased complexity make mammalsmore advanced and fish and amphibians more primitive? Why orwhy not?
Based on the anatomy of dogfish shark The serosa lining the pleuropertioneal cavity is the visceral peritoneum?True/False The mesogaster is part of the ventral mesenteries?True or False
Which of the following adaptations is only found in mammals and not other vertebrates: O a. Havinga complete double circulation of the blood. O b. Havinga heat insulating layer of fat under the skin. O c. Having lungs enclosed in a rib cage. O d. Having colour vision. O e. Generating heat by shivering.
Mammals have a particularly good sense of earing thanks to their inner ear which includes three tiny bones. Reptiles, in contrast, have a single inner ear bone. The lower jaw of reptiles is composed of multiple bones while the lower jaw of mammals is a single bone. Fossil and developmental evidence indicate that the inner ear bones of mammals evolved from lower jawbones. This suggests that the inner ear bones of mammals are 1. an analogy 2. an exaptation 3. a living fossil 4. a transitional trait 5. a vestigial structure
How is the internal anatomy of the Perch (bony fish) similar to and different from the shark? How does the anatomy of the digestive system influence the food preference of the perch, compared to that of the shark? What is the comparison of both the shark and the perch in their buoyancy mechanisms and their oxygen/carbon dioxide exchange? Please answer this fully because last time someone didn't answer this correctly and wasted one of my question credits.
Fetal Pig Oral Cavity Please refer to the pic to answer the question Describe the color, texture, and functions of the fetal pig's oral cavity. Compare the features of the pig's oral cavity to that of the frogs. What features of the pigs oral cavity are also found in that of humans? What differences are there? Describe the pigs teeth. Also what prevents food from entering the glottis or nasopharynx and what happens when the food does enter either of those two openings?
Jay Guide The human embryo and the embryos of other animals with backbones have gill slits. According to the modern evolutionary theory, this best supports the idea: Mark only one oval. That fish are our closest relatives All embryos breathe through their gills All animals with backbones are related by common ancestry All organisms have gill slits at an early stage in their development