Concept explainers
Introduction:
Circulatory system helps in the distribution of nutrients and oxygen from the external environment into the body. In return, it expels waste products and carbon dioxide from the body. The circulatory system varies from simple animals to complex animals.
Answer to Problem 1TYK
Correct answer:
Have blood and intestinal fluid mixing directly in body spaces.
Explanation of Solution
Justification/explanation for the correct answer:
Option (d) is, have blood and intestinal fluid mixing directly in body spaces. The invertebrate animals have open circulatory system, where the contraction of the heart results in the pumping of blood like fluid called hemolymph through the arteries. hemolymph is released directly into the body spaces called sinuses. In sinuses, hemolymph and intestinal fluid get mixed up and there is no clear difference between them. Hence, option (d) is correct.
The explanation for the incorrect answers:
Option (a) is, lead to more mobile lives. Vertebrates show more complex locomotive organs. They have bipedal as well as tetra pedal digits for movement. Invertebrates show less mobility than vertebrates. So, it is an incorrect option.
Option (b) is, require a higher level of oxygen. The vertebrates due to its highly evolved physiological and anatomical structure require a higher level of oxygen than lesser evolved invertebrates. So, it is an incorrect option.
Option (c) is, have a more complex layer of cells. Vertebrates have three germ layer of cells whereas some invertebrates show only two germ layer of cells. Hence, the vertebrates have a more complex layer of cells. So, it is an incorrect option.
Option (e) is, require faster delivery and greater quantities of nutrients. The circulatory system in invertebrates is not complex. They require less quantity of nutrients and its delivery to tissues. Whereas, the vertebrates have a complex double circulatory system. So, it is an incorrect option.
Hence, options (a), (b), (c), and (e) are incorrect.
It can be concluded that the open circulatory system in invertebrate animals shows the mixing up of blood and intestinal fluid into the body spaces called sinuses.
Want to see more full solutions like this?
Chapter 44 Solutions
Biology: The Dynamic Science (MindTap Course List)
- You are confronted with two worms that, on first glance, appear to be very similar. Upon closer examination, however, you note one difference that allows you to identify one specimen as an earthworm and the other as a roundworm. That key characteristic is: A. The presence of a gastrovascular cavity B. The presence of a body cavity C. The presence of a muscle layer around the digestive tract D. The absence of a specialized gas exchange surface E. None of the characteristics listed above would allow an earthworm to be distinguished from a roundwormarrow_forwardWhat is a characteristic of the circulatory systems of arthropods and mollusks that distinguishes them from the circulatory system of echinoderms? They have lungs. They have muscular pumps to circulate the extracellular fluid. They are closed circulatory systems. They have extracellular fluid to transport substances to and from internal organs. They have cilia to circulate the extracellular fluid.arrow_forwardInsects have a tracheal system that consists of: O a. Flat plates along the side of the body. O b. A mass of air filled tubes. Blood vessels running just under the skin. d. O d. Apairof lungs extending Inside the body. Gills on the legs.arrow_forward
- One of the innovations in animal body design, segmentation, allowed fora. development of efficient internal organ systems.b. more flexible movement as individual segments can move independently of each other.c. locating organs in different areas of the body.d. early determination of embryonic cellsarrow_forwardMany invertebrates utilize the body cavity as a circulatory system. However, in humans, the body cavity plays no role whatsoever in circulation. Why?arrow_forwardInsects have a tracheal system that consists of: O a. Flat plates along the side of the body. O b. Amass of air filled tubes. O c. Blood vessels running just under the skin. O d. Apair of lungs extending inside the body. O e. Gills on the legs.arrow_forward
- identify whether the organ is: unique to the cockroach; unique to the toad; or common to both. A. terminal opening for digestive wastes: B. hair-like excretory organ: C. longitudinal pumping vessel that runs mid dorsal through the thorax and abdomen: D. slit-like opening that eventually leads to the posterior respiratory tract: E. ventral-longitudinal pair of nerves behind fat tissues:arrow_forwardWhat are the difference of bodily functions of cockroach, toad, and mouse on; A. Reproduction and Development B. Regulation and Maintenance C. Communication and Integration D. Support and Movementarrow_forwardIdentify whether the organ is: unique to the cockroach; unique to the toad; or common to both. A. Terminal opening for digestive wastes B. hair-like excretory organ: C. longitudinal pumping vessel that runs mid dorsal through the thorax and abdomen: D. slit-like opening that eventually leads to the posterior respiratory tract: E. ventral-longitudinal pair of nerves behind fat tissues:ventral-longitudinal pair of nerves behind fat tissues:arrow_forward
- Unlike bony fish in the sea, cartilaginous fish are hypertonic in their osmotic pressure. Thus: O a. They have high levels of sodium chloride in their cells compared with a bony fish. O b. They produce very little urine. Oc. They have high levels of urea in their blood. O d. Osmoregulation requires a greater expenditure in energy compared with a bony fish. O e. They need much larger salt glands than in a bony fish.arrow_forwardAnimals that exhibit endothermy usually: Group of answer choices A. can consume less food per unit of body mass than ectotherms, for survival. B. can be active across a wider range of environmental temperatures than ectotherms. C. spend a greater proportion of their energy budget than ectotherms on growth and reproduction. D. A and B E. A, B, and Carrow_forwardWhich of the following is not a feature common to most animals? a. development into a fixed body plan b. asexual reproduction c. specialized tissues d. heterotrophic nutrient sourcingarrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax CollegeHuman Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning