Worksheets25 Test Animal Systems I
Total questions: 22
Worksheet time: 11mins
A variety of microorganisms live as symbionts in the human digestive tract. What determines is whether their relationship with the human is parasitic or mutualistic?
Whether their actions harm or benefit the human host
Whether or not they gain energy from food that the human eats
Their reproductive rate compared to the replication rate of human cells
Their size compared to human cells.
Which property of an animal's mouth most strongly indicates whether the animal is a carnivore or an herbivore?
The symmetry of the teeth and other mouthparts
The size of the mouth
The shape of the teeth, such as sharp or flat tops
The chemical composition of the teeth
Chloe is constructing a diagram of the digestive tract in cattle. Her diagram includes a rumen, which is a pouch-like extension of the esophagus. Which addition to the diagram would be most useful to model the function of the rumen in food digestion?
An arrow pointing down the esophagus that passes through the rumen
An arrow pointing down the esophagus to the rumen, and the reversing up the esophagus.
An arrow from the rumen to the blood that surrounds it
An arrow into the rumen from the blood that surrounds it.
Food digestion occurs in much the same way in all vertebrates and many invertebrates. Which describes this common process?
Food is gradually broken down in to smaller pieces as it travels through the blood.
Food is broken down completely in the mouth, and the nutrients are carried to the cells.
Food is broken down in a digestive cavity, and the nutrients are absorbed.
Food is broken down and combined with oxygen in a digestive cavity, where all metabolism occurs.
All vertebrates breathe with either gills or lungs. Which is a property gills ONLY--and NOT lungs?
Gases exchange across moist, selectively-permeable membranes.
Air collects in tiny sacs called alveoli
Water collects in tiny sacs called alveoli.
Gases exchange across membranes that separate blood and water.
Which statement describes how the function of the lungs relates to the function of another organ system?
The lungs depend on the skin (integumentary system) to allow gases to diffuse in and out of the body.
The lungs depend on the digestive system to release carbon dioxide and transport oxygen
The lungs depend on the circulatory system to transport carbon dioxide from cells and oxygen to the cells.
The lungs depend on the muscular system to activly pump carbon dioxide and oxygen across blood membranes.
In insects, the respiratory involves structures called tracheal tubes. How to the tracheal tubes provide oxygen to the insect's body?
Oxygen is pumped through tracheal tubes to the insect's lungs.
Oxygen diffuses through tracheal tubes that extend throughout the insect's body.
Oxygen diffuses through tracheal tubes that connect to form a single channel, similar to the digestive cavity.
Oxygen is pumped through tracheal tubes that connect to form a single channel, similar to the digestive cavity.
In the lungs of mammals, airways branch into a series of narrowing tubes that end in alveoli. How does gas exchange occur between alveoli and blood capillaries?
Gases diffuse across a thin, semipermeable membrane.
Gases are pumped through protein channels in the membrane.
Gases diffuse across a wide opening between alveoli and blood capillaries.
Gases are captured by red blood cells in the alveoli, which then are carried into the blood.
A large grasshopper and a small mouse may be similar in size. However, the total length of blood vessels is much greater in the mouse, and the mouse's heart pumps at much higher pressure than the grasshopper's hearts. Which statement is most useful for explaining these observations?
The mouse pumps blood through its circulatory system; the grasshopper pumps air and water
The mouse has a four-chambered heart; the grasshopper has a much simpler heart structure.
The mouse is a mammal; the grasshopper is an insect.
The mouse has a closed circulatory system; the grasshopper has an open circulatory system.
The terms atrium and ventricle are used to describe chambers in a wide variety of animal hearts. What do all atria and ventricles have in common among all of these hearts?
Atria always receive blood from the body; ventricles always pump blood back to the body.
Atria always receives blood from the lungs or gills; ventricles always receive blood from other body structures.
Atria always pump blood to lungs or gills; ventricles always pump blood to other body structures.
Atria always receive or pump blood; ventricles receive blood only.
The mammalian circulatory system includes a four-chambered heart and a double-loop circulation. How do the four chambers of the heart relate to the two circulatory loops?
All four chambers receive and pump blood for both loops.
Three chambers receive blood, one chamber pumps blood to both loops
Three chambers pump blood to both loops, one chamber receives blood.
One pair of chambers receives blood and pumps blood for each loop.
Double-loop circulatory systems are found in adult amphibians, reptiles, birds, and mammals. In which characteristic do these systems differ from one another?
The number and organization of heart chambers, or partitions within the chambers
The presence or absence of sinuses, where blood pools and collects
The presence or absence of capillary beds in the lungs.
The gases that the blood carries to and from the lungs.
A scientist is analyzing a sample of blood that was obtained from a dog. Which of these findings would MOST strongly indicate that the excretory system in the dog is not functioning properly?
High levels of glucose
Low levels or absence of uric acid
Low levels of urea
High levels of ammonia
The kidneys are an essential organ of the vertebrate excretory system, which also includes the ureters, bladder, and urethra. What BEST describes the unique function of the kidneys in the excretory system?
Storing urine until the body is ready to eliminate it.
Using osmosis to filter nitrogenous wastes from the blood.
Pumping a solution of water and phosphate-based wastes out of the blood.
Converting ammonia and other nitrogenous wastes into urea or uric acid.
The excretory systems of annelids and mollusks include structures called nephridia, while the excretory systems of insects and spiders include Malpighian tubules. Which is a significant difference between nephridia and Malpighian tubules?
Nephridia produce urine, while Malpighian tubules absorb uric acid.
Nephridia filter wastes from the blood, while Malpighian tubules absorb wastes from the digestive tract.
Nephridia filter nitrogenous wastes, while Malpighian tubules absorb wastes that do not contain nitrogen.
Nephridia convert ammonia to urea, while Malpighian tubules absorb and eliminate ammonia.
In the diagram of a typical mammal, the respiratory system is illustrated. Which of the following lists the correct order of air movement into the body?
Lungs, bronchi, trachea, throat, mouth and nose.
Throat, mouth and nose, bronchi, trachea, lungs
Mouth and nose, throat, trachea, bronchi, lungs.
Trachea, lungs, mouth and nose, bronchi, throat.
Gas exchange occurs in the alveoli. Where are the alveoli located?
At the back of the mouth, near the uvula and tonsils.
Throughout the respiratory system, adjacent to the trachea and bronchi
At the center of the lungs, inside the bronchi
Throughout the lungs, at the ends of the respiratory tract
Which describes the double-loop system but NOT the single-loop system?
A ventricle pumps blood through only one capillary bed.
An atrium receives oxygen-poor from the body
Blood travels through heart chambers and blood vessels in one direction only
Blood travels through heart chambers and blood vessels in two directions
Which component is ONLY found in one of the two circulatory systems and NOT both?
Artery
Lung capillaries
Atrium
Ventricle
The small intestine is named small because it is relatively narrow and not because of its length. In fact, in mammals, the small intestine is the longest organ of the digestive tract. The small intestine has many coils or loops that allow it to pack into the abdominal cavity. Based on the diagram and this information, which statement is most likely correct?
Only plant matter, and not meat, is digested in the small intestine.
The width of a mammal's small intestine can be estimated by what it eats.
The length of a mammal's small intestine can be estimated by the animal's body length.
The digestion of plant matter requires a longer small intestine than the digestion of meat.
Which feature is found in an open circulatory system but NEVER in a closed circulatory system?
Sinuses where body tissues are bathed in blood
Multiple hearts that pump blood through the system.
Blood that travels in a single loop between a heart, respiratory organ, and body capillaries
Blood that travels in a double-loop between a heart, respiratory organ, and body capillaries
The tube-like structure on this bird's beak is used for...
Excretion of water
Taking in extra oxygen
Elimination of excess salt
Aiding the bird in flying.
