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What is the difference between a crayfish circulatory system and a humans circulatory system?
A crayfish has an open circulatory system while humans have a closed circulatory system. "Closed" means that we have true blood vessels that carry blood to and from the heart. "Open" means that the organs are simply bathed in blood that freely circulates around the body. Sometimes the heart can move the "blood" by creating pressure waves in the fluid.
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What is the difference between protozoa and amoeba?
are protozoa and amoeba the same
How is the circulatory system of a human and a giraffes circulatory system different?
The main difference between the circulatory systems of humans and giraffes is the length of their blood vessels. Giraffes have very long necks, so their heart must pump blood with enough force to reach their brain. This results in higher blood pressure and a larger heart compared to humans. Additionally, giraffes have specialized valves in their neck to prevent blood from rushing to their brain when they lower their heads to drink.
What is the percentage of genetic difference between male and female humans?
There is only a small percentage of genetic difference between male and female humans, estimated to be around 0.1%. The majority of genes are shared between males and females, with the differences mainly located on the sex chromosomes (X and Y).
What would have happened if humans had not developed a circulatory system?
Humans didn't develop a circulatory system. Early forms of circulatory systems developed in the first animals and organisms to roam the earth. As these species evolved through speciation and genetic variation, new species came to exist that also had circulatory systems. Over time, the systems became more complex and efficient (compare the cardiopulmonary circulatory system of the human compared to the circulation of a fish). Therefore, without circulatory systems there would be no humans nor would there be life as we know it
What is satellite write the difference between natural satellite and artificial satellite?
The difference is the same as in other contexts.* "Artificial" means that something was created by humans. * "Natural" means that it was NOT created by humans.
What 2 systems of a crayfish are most unlike human systems?
Exoskeleton: Crayfish have a hard shell, and no bones. That makes crayfish invertebrates (no spine). Gills: Crayfish respire underwater through gills, where humans use lungs. The circulatory system is the second one, the reason for this being that crayfish have no blood vessels (and humans obviously do).
What is the similarity between a fish's circulatory system and humans circulatory?
Both are close circulatory system.
Of the crayfish systems what two are the most unlike the humans systems?
The excretory system of crayfish, which involves specialized structures called green glands for waste removal, is unlike the human excretory system, which primarily relies on the kidneys. The respiratory system of crayfish, which involves gills for gas exchange, differs from the human respiratory system that uses lungs.
What can eat crayfish?
Humans
What is the difference between open and close circulatory system?
Closed circulatory systems have blood that does not flow in defined blood vessels. Examples are insects and how their organs are bathed continually in "blood". Open circulatory systems have blood that flows in vessels. Humans have this system as blood flows in veins, arteries and capillaries.
What do crayfish and humans have that snails do not have?
Quite obviously crayfish, humans, and many other animals have apendages. Snails, however do not.
What is the difference between an open open and closed circulatory system?
Closed circulatory systems have blood that does not flow in defined blood vessels. Examples are insects and how their organs are bathed continually in "blood". Open circulatory systems have blood that flows in vessels. Humans have this system as blood flows in veins, arteries and capillaries.
What is the difference between a single celled organism circulatory system and a humans circulatory system?
Unicellular: Exchanges occur directly with enviroment Multicellular: Diffusion is not possible unless diffusion across body surface. Transporting substances over long distance in animals.
What is the rusty crayfish's predator?
Humans
What is the difference between humans and phones?
humans talk, phones answer.
What is the difference between the perch and human circulatory system?
The perch has a single circulatory system that consists of a two-chambered heart and blood vessels, while humans have a double circulatory system with a four-chambered heart. In the perch, blood flows from the heart to the gills for oxygenation and then to the body tissues, while in humans, blood circulates from the heart to the lungs for oxygenation and then back to the heart before being pumped to the rest of the body.
What is the difference between a horse's circulation system to a humans?
There is very little difference between the circulatory system of a horse and a human other than size. The other primary difference would be that the human system functions on a vertical plane and the horse system functions on a more horizontal plane because of the natural orientation of their bodies.
