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Anonymous users2024-02-12Although biologists generally believe that all organisms on the earth are in the same main line, because of the process of reproduction of this single-celled organism, different environments have emerged, resulting in changes in the genes of the species. Different genes form different physiological characteristics, which ultimately create the biodiversity we have now. But in any case, most of the creatures are genetically similar, but some of them are not only strange in appearance, but also have different internal structures from us.
For example, one of nature's most amazing creatures, the spider. <>
In the study of biologists, they found that the blood of many spiders is blue, and during the dissection, they found that this is mainly because the hearts of spiders are different from those of us humans or other animals. Like mammals, the circulatory system is an extremely complex and huge project. But this is completely different in spiders, which have very simple blood circulation, only a heart, and some arteries and veins.
Blood carries different things than we humans, as our normal mammalian blood normally transports nutrients and oxygen, while spiders transport oxygen through their lungs. <>
It is this special body structure, combined with its relatively open circulatory system, that causes the blood in the spider's body to mix with other tissue fluids. In fact, on this earth, in addition to spiders have such a body structure, there are many invertebrates that are also like this. The main reason why spiders are brought up is because blue is not common in nature.
The reason why most mammalian blood is red is because our blood is rich in hemoglobin, and hemoglobin is formed because of the iron in it. Iron turns red when it is oxidized, and spiders only have hemoglobin in it, which does not contain any of the usual metallic elements.
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Anonymous users2024-02-11Because hemoglobin in nature comes in two colors, which are red and blue. Therefore, it is also normal for the spider's blood to be blue.
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Anonymous users2024-02-10The blood of a spider is not like human blood, it is made up of tissue fluid and lymphatic fluid. It is an open circulation system. The serum protein in the spider contains copper and does not contain iron, and when exposed to oxygen, it oxidizes to form green copper oxide.
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Anonymous users2024-02-09Because the spider's blood is haemocyanin, while other organisms are haemoglobin, its blood is blue unlike other organisms.
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Anonymous users2024-02-08Because spiders are cold-blooded animals and have special components in their blood, they will be different.
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Anonymous users2024-02-07The spider's blood is turquoise. Spiders are arthropods, and the blood of molluscs and arthropods is blue or turquoise (with some exceptions), because the serum protein used to transport oxygen in these animals is hemocyanin, the blue copper protein (Cu2+), which turns pale blue-green when oxidized. Therefore, the spider's blood is turquoise.
The spider's blood is turquoise. Spiders are arthropods, and the blood of molluscs and arthropods is blue or turquoise (with some exceptions), because the serum protein used to transport oxygen in these animals is hemocyanin, the blue copper protein (Cu2+), which turns pale blue-green when oxidized. Therefore, the spider's blood is turquoise.
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Anonymous users2024-02-06Green. The blood of mollusks and arthropods is blue or turquoise (there are exceptions) because the serum protein that transports oxygen in such animals is hemocyanin, blue copper protein, and spiders are arthropods and the blood should be turquoise.
The heart of a spider does not have an obvious heart like that of humans or other mammals, but the circulatory system is very simple, consisting of a tubular heart with multiple pairs of orifice, arteries, veins, and some blood sinuses from the front of the heart.
In the pericardiac sinus on the dorsal side of the abdomen of the plant, there are generally three pairs of cardiac foramen, one large artery leading to the front and back and three pairs of test arteries, and oxygen is transported to the whole body through gas exchange in the lungs, and flows into the sinus through the pulmonary veins, and returns to the heart through the cardiac foramina.
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Anonymous users2024-02-05The spider's blood is blue-green.
The blood of humans and all mammals is red because of the presence of a protein in our blood: hemoglobin. Whereas, spiders and other arthropods do not have hemoglobin in their bodies, but have a protein called hemocyanin, which contains copper instead of iron.
However, hemocyanin does not attach to any cell in an organism like hemoglobin, it only flows freely in the circulatory system.
When an oxygen atom binds to hemocyanin, it does not turn dark red, but instead turns pale blue-green. This effect is not so pronounced in spiders, as their bodies contain only a small amount of bloodlymph; However, in larger arthropods, there is blue blood flowing through the body.
Predatory habits of spiders
Spiders feed on trapped insects, other spiders, myriapods, and some spiders also feed on small animals. Jumping spiders have good eyesight and can dive within 30 centimeters to catch their prey and pounce on them. Crab spiders wait for their prey on flowers that are similar to their body color.
Spiders burrowing in the earth build burrows lined with silk, and the entrance of the burrow has a trap that is not opened at night to prey on insects that pass through the hole. funnel spiders weave funnel webs, and insects fall into the nets to cause vibration; The spider itself resides in a filament tube with a narrow end that leads into a plant or a crevice in a rock.
Most round spiders use the least amount of silk to weave the largest web, which acts as an air filter to trap insects that do not see filaments and are not very flying. Although the net is complex, it can generally be woven within 1 hour, and it is mostly completed before dawn. If the net is destroyed during predation, a new net is woven.
When weaving a round web, the spider releases a trace that flutters in the wind. If the free end of the silk fails to stick to something, the spider pulls the silk back and eats it. If the silk is firmly attached to something (such as a tree branch), the spider passes over the bridge and reinforces it with silk.
The leaves and fruits of plants contain chlorophyll, anthocyanins, and carotene contained in some plants, which are all green and red, and the branches of trees are brown, except for very few flowers, most of the flowers are white, red, and yellow, red and yellow because the flowers contain carotene and other pigments, and the white flowers are because the flowers do not contain pigments. Therefore, blue flowers are particularly precious, and very few flowers are naturally blue, and most of them are carefully cultivated. Why do plants have so many colors but not blue? >>>More
Organs with silk-strapped nets.
The spider's abdomen has 3 pairs of protrusions, called the textile apparatus, and there are many textile tubes on the textile apparatus that communicate with the silk glands in the body, which are at the posterior end of the abdomen and are connected to the textile organs on the surface through many microtubules. >>>More
First of all, understand how light works, as light travels from the sun, it moves up and down like ocean waves, and when the wavelengths come together, we appear as if they are white.
There are two ways for chickens to sleep, one is to lie down in the chicken coop in winter. The second is to embody the primitive nature of birds, standing on one leg while sleeping, the other leg tucked in the feathers, the neck turned upside down, and the head inserted into the wings. >>>More
Sunlight is composed of seven types of light: red, orange, yellow, green, cyan, blue, and violet. Among the seven types of light, cyan, blue, and violet wavelengths are shorter and are easily scattered by air molecules and dust.