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- https://bio.libretexts.org/Courses/Community_College_of_Vermont/Human_Biology_(Gabor_Gyurkovics)/04%3A_Introduction_to_the_Human_Body/4.03%3A_Human_Cells_and_TissuesThis photo looks like a close-up of an old-fashioned dust mop, and the object it shows has a somewhat similar function. However, the object is greatly enlarged in the photo. Can you guess what it is? ...This photo looks like a close-up of an old-fashioned dust mop, and the object it shows has a somewhat similar function. However, the object is greatly enlarged in the photo. Can you guess what it is? The answer may surprise you.
- https://bio.libretexts.org/Bookshelves/Human_Biology/Human_Biology_(Wakim_and_Grewal)/10%3A_Introduction_to_the_Human_Body/10.3%3A_Human_Cells_and_TissuesThis photo looks like a close-up of an old-fashioned dust mop, and the object it shows has a somewhat similar function. However, the object is greatly enlarged in the photo. Can you guess what it is? ...This photo looks like a close-up of an old-fashioned dust mop, and the object it shows has a somewhat similar function. However, the object is greatly enlarged in the photo. Can you guess what it is? The answer may surprise you.
- https://bio.libretexts.org/Workbench/Principles_of_the_Human_Body/6%3A_Cells/6.11%3A_Human_TissuesThis photo looks like a close-up of an old-fashioned dust mop, and the object it shows has a somewhat similar function. However, the object is greatly enlarged in the photo. Can you guess what it is? ...This photo looks like a close-up of an old-fashioned dust mop, and the object it shows has a somewhat similar function. However, the object is greatly enlarged in the photo. Can you guess what it is? The answer may surprise you.
- https://bio.libretexts.org/Courses/Canada_College/Human_Biology_Biol_011_Textbook/09%3A_Introduction_to_the_Human_Body/9.03%3A_Human_Cells_and_TissuesThis photo looks like a close-up of an old-fashioned dust mop, and the object it shows has a somewhat similar function. However, the object is greatly enlarged in the photo. Can you guess what it is? ...This photo looks like a close-up of an old-fashioned dust mop, and the object it shows has a somewhat similar function. However, the object is greatly enlarged in the photo. Can you guess what it is? The answer may surprise you.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/15%3A_The_Anatomy_and_Physiology_of_Animals/15.03%3A_Circulatory_Systems/15.3K%3A_Animal_Circulatory_SystemsThis page outlines the components and challenges of efficient circulatory systems, highlighting the differences across species. It notes that fish have less efficient systems due to pressure loss in g...This page outlines the components and challenges of efficient circulatory systems, highlighting the differences across species. It notes that fish have less efficient systems due to pressure loss in gills, while squids use separate pumps. Amphibians possess three-chambered hearts with some blood mixing, whereas lizards have a muscular septum to enhance separation.
- https://bio.libretexts.org/Courses/Skyline_College/BIOL_130%3A_Human_Biology/11%3A_Cardiovascular_System/11.05%3A_BloodBlood is a fluid connective tissue that circulates throughout the body through blood vessels of the cardiovascular system. What makes blood so special that it features in widespread myths? Although bl...Blood is a fluid connective tissue that circulates throughout the body through blood vessels of the cardiovascular system. What makes blood so special that it features in widespread myths? Although blood accounts for less than 10 percent of human body weight, it is quite literally the elixir of life. As blood travels through the vessels of the cardiovascular system, it delivers vital substances such as nutrients and oxygen to all of the cells and carries away their metabolic wastes.
- https://bio.libretexts.org/Courses/Minnesota_State_Community_and_Technical_College/Biology_of_Human_Concerns_(Daniels)/05%3A_Cardiovascular_System/5.05%3A_BloodBlood is a fluid connective tissue that circulates throughout the body through blood vessels of the cardiovascular system. What makes blood so special that it features in widespread myths? Although bl...Blood is a fluid connective tissue that circulates throughout the body through blood vessels of the cardiovascular system. What makes blood so special that it features in widespread myths? Although blood accounts for less than 10 percent of human body weight, it is quite literally the elixir of life. As blood travels through the vessels of the cardiovascular system, it delivers vital substances such as nutrients and oxygen to all of the cells and carries away their metabolic wastes.
- https://bio.libretexts.org/Courses/Manchester_Community_College_(MCC)/BIOL_106%3A_Essentials_of_Anatomy_and_Physiology_(Anzalone)/01%3A_Introduction_to_the_Human_Body/1.03%3A_Human_Cells_and_TissuesThis photo looks like a close-up of an old-fashioned dust mop, and the object it shows has a somewhat similar function. However, the object is greatly enlarged in the photo. Can you guess what it is? ...This photo looks like a close-up of an old-fashioned dust mop, and the object it shows has a somewhat similar function. However, the object is greatly enlarged in the photo. Can you guess what it is? The answer may surprise you.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/15%3A_The_Anatomy_and_Physiology_of_Animals/15.03%3A_Circulatory_Systems/15.3E%3A_BloodThis page describes blood as a liquid tissue composed of red blood cells, white blood cells, platelets, and plasma, primarily involved in oxygen transport and infection defense. It discusses the types...This page describes blood as a liquid tissue composed of red blood cells, white blood cells, platelets, and plasma, primarily involved in oxygen transport and infection defense. It discusses the types of blood cells and their functions, the importance of serum lipid levels for cardiac health, and the risks associated with different cholesterol levels. Safety protocols for blood donations in the U.S.
- https://bio.libretexts.org/Courses/Skyline_College/BIOL_130%3A_Human_Biology/05%3A_Introduction_to_the_Human_Body/5.03%3A_Human_Cells_and_TissuesThis photo looks like a close-up of an old-fashioned dust mop, and the object it shows has a somewhat similar function. However, the object is greatly enlarged in the photo. Can you guess what it is? ...This photo looks like a close-up of an old-fashioned dust mop, and the object it shows has a somewhat similar function. However, the object is greatly enlarged in the photo. Can you guess what it is? The answer may surprise you.
- https://bio.libretexts.org/Courses/Butte_College/BC%3A_BIOL_2_-_Introduction_to_Human_Biology_(Grewal)/Text/10%3A_Introduction_to_the_Human_Body/10.3%3A_Human_Cells_and_TissuesThis photo looks like a close-up of an old-fashioned dust mop, and the object it shows has a somewhat similar function. However, the object is greatly enlarged in the photo. Can you guess what it is? ...This photo looks like a close-up of an old-fashioned dust mop, and the object it shows has a somewhat similar function. However, the object is greatly enlarged in the photo. Can you guess what it is? The answer may surprise you.
