-
Of course not, prokaryotes are organisms that do not have a formed nucleus: like bacteria. But paramecium has a pair of large and small nuclei, so paramecium is not a prokaryote.
-
Eukaryotes, it has a distinct nucleus, not a nuclear region.
-
No, it has large nuclei and small nuclei.
-
No, it's like something primitive, like bacteria are prokaryotes.
-
Obviously, paramecium is not a prokaryotic organism, and the prokaryotes that are exposed to in high school are: cyanobacteria, bacteria (including cocci, bacilli, spirochetes), actinomycetes, mycoplasma, chlamydia. In addition, the lactobacillus and E. coli that are often tested in the exam, and the other ones that are tested in the basic exam are eukaryotes (viruses are easy to judge).
-
Paramecium is a eukaryotic organism with a formed nucleus and is a protozoan Chlamydomonas cyanobacteria is a prokaryotic organism.
-
Paramecium is eukaryotes and all animals are eukaryotes.
-
It is a eukaryotic organism and has two nuclei, large and small.
-
No, prokaryotes have an intact nucleus, eukaryotes have a nucleoid, but no nucleus.
Paramecium has only a nucleomorphic and no nucleus.
-
It is eukaryotic, prokaryotes have no formed nucleus, and organelles only have ribosomes.
-
No, paramecium is eukaryotes and all animals are eukaryotes. Prokaryotes are only cyanobacteria and so on, as well as mycoplasma and chlamydia, actinomycetes, etc.
-
Which ignorant person made you fall for this?
Eukaryotic.
-
Paramecium relies on the outer membrane of the body to absorb oxygen from the water and excrete carbon dioxide. Common paramecium has two nuclei; a large nucleus, which mainly plays an important role in nutrient metabolism; A small nucleus, mainly involved in reproduction.
-
Paramecium is not a prokaryotic and is a eukaryotic organism. Paramecium belongs to the phylum Protozoa, Cilia, Hymenostopae, and Paramecium, and is a representative species of protozoa. Common paramecium has two nuclei;
The large nucleus mainly plays an important role in nutrient metabolism, and the small nucleus is mainly related to reproduction.
Epimembrane: encapsulates and protects cells.
Cilia: Assists in locomotion.
Collection tube: Collects the waste products metabolized in the body and excretes them from the body.
Oral groove: ingestion of food. Food bubbles: Digest food.
Bubble anus: Drains food that cannot be digested.
Nucleus: The large nucleus is responsible for controlling nutrient metabolism and the small nucleus is responsible for controlling reproduction.
1. Prokaryotic cells: the cytoplasm lacks complex organelles (only ribosomes, which are organelles) Eukaryotic cells: The cytoplasm contains complex organelles (such as mitochondria, chloroplasts, Golgi apparatus, endoplasmic reticulum, ribosomes, centrosomes, lysosomes, vacuoles, etc.).
2. Prokaryotes: structure, no formed nucleus, only nucleoid.
Eukaryotes: Complex in structure with a shaped nucleus, the nucleus has a nuclear membrane and nucleolus.
3. Prokaryotes: Transcription and translation are in the same time and place.
Eukaryotes: Transcription is within the nucleus and translation is within the cytoplasm.
-
<>1. Paramecium is not a prokaryotic organism but a eukaryotic organism, and they usually live in ponds rich in organic matter, ditches near residential areas, and slow-flowing ditches. 2. Paramecium belongs to the phylum Protozoa, Cilia, Hymenostopae, and Paramecium, which is a representative species of cilia and protozoa. 3. Paramecium is a larger species in the protozoa, when there are more paramecium in the liquid, you can directly observe the white dots that are slippery and needle-like and floating with the naked eye, and these white spots are paramecium.
1. Are paramecium prokaryotes?
1. Paramecium is not a prokaryotic organism, it belongs to eukaryotic organisms, and generally lives in ponds rich in organic matter, ditches near residential areas, small ditches and small rivers with slow flow rate.
2. Paramecium is a single-celled organism, belonging to the phylum Protozoa, Cilia, Hymenosta, and Paramecium, which is a representative species of Cilia and a representative species of protozoa.
3. In protozoa, paramecium is a large species, when there are a large number of paramecium in the liquid, you can directly observe the needle-pointed, shiny white dots floating, these white spots are paramecium.
4. Paramecium hermaphrodites, the shape is mostly cylindrical (the front end is obtuse and round, the back end is wide and slightly pointed), the body length is mostly about 180-280 microns, and the life span is only 1 day and night.
2. What does paramecium rely on to breathe?
1. Breathing method.
Paramecium insects do not have a respiratory system, they rely on the surface membrane of their body for breathing and cilia for locomotion.
2. The structure of paramecium.
1) Cilia: can assist locomotion.
2) Surface membrane: It can encapsulate and protect cells.
3) Oral groove: can be ingested food.
4) Food bubbles: digestible food.
5) Bubble anus: Excretes indigestible food from the body.
6) Collection tube: Collects waste products produced during metabolism in the body.
7) Nucleus: The large nucleus controls nutrient metabolism, and the small nucleus controls reproduction.
-
Paramecium is a single-celled organism that has a cell membrane, cytoplasm, and nucleus, while paramecium does not have a cell wall. Paramecium is a small, cylindrical protozoan with a single body, it is made up of only one cell and is a single-celled protozoan, hermaphroditic. The most common is Cercocerium paramecium.
Paramecium is a representative species of the ciliaceous class and a representative species of protozoa. The body length is only 80,300 microns. Paramecium lives in freshwater and can be found in ponds and marshes.
There are 22 species known in the world, including large paramecium, bismall micronucleus paramecium, multi-small nucleated paramecium, and green paramecium.
The respiration of paramecium is mainly carried out through the body surface, which absorbs oxygen from the water by the surface membrane of the body surface and excretes the carbon dioxide produced by metabolism from the body. Paramecium macromecium has 2 nuclei, the large nucleus is related to nutrition and the small nucleus is related to reproduction.
Paramecium belongs to the most primitive and lowest protozoa in the animal kingdom. It prefers to live in rice fields, ditches, or ponds with little flowing water in organic matter, and feeds on bacteria and unicellular algae. It is estimated that a paramecium can form about 60 food bubbles per hour, and each food bubble contains about 30 bacteria, so a paramecium can swallow about 43,200 bacteria per day, and it has a certain purification effect on sewage.
-
Paramecium is a single-celled protozoan that has only one nucleus.
-
A paramecium cell is an individual that has no tissues, organs, and systems.
-
Paramecium is a single-celled protozoan that lives in shady sewage, often symbiotic with rotifers, and is found in stagnant waters in the wild. Rotifers and paramecium are the best bait for young tropical fish. In the season when there are no rotifers in the wild, it is more important to propagate paramecium in captivity.
1) Necessary conditions for the propagation of paramecium.
1) Fish farming pots and boxes are acceptable.
There is no limit to the quantity. Determined according to demand.
2) The screen mesh for various filters of paramecium is 80 mesh and 250 mesh. 2 3 pcs.
3) A small bundle of straw and a few large stones.
4) Prepare 20 30 ml of fresh milk per day.
5) 50 ml beakers 2 3 pcs.
6) 1 cloth bag.
2) Introduction of paramecium.
Put the pots or boxes that need to be raised with paramecium in a dark place in the house and dry them with tap water for 3 days. Put 1 2 handfuls of bundled straw in each pot or box, press it with large stones, so that the straw handle does not float on the water, and introduce paramecium on the 4th day. If pure paramecium is not available, 150 ml of natural grey water can be poured into a basin.
Then put 7 8 ml of fresh milk. The water temperature is maintained at 18-23.
3) Feeding management of paramecium.
1) On the 7th or 10th day of the introduction of paramecium, there will be white cloud-like insects roaming on the water surface or in the center of the water, that is, paramecium.
2) When there is a foamy accumulation on the water surface, that is, the paramecium reaches a saturated state in the pot, and if no measures are taken, a large number of insects will die, and the water quality will deteriorate (the water quality is black and foul-smelling), and finally "turn the pot".
Therefore, when paramecium reaches saturation, it can be solved by partial water exchange. Suck off the bottom water 1 3 or 1 2 and immediately mix it with water that has been placed for 1 2 days (do not be afraid of losing paramecium). Immediately after changing the water, feed 5 6 ml of fresh milk (rather less than more), the water surface forms an oily skin, which hinders the normal breathing of paramecium, at this time use a cloth bag to "beat the skin".
When there is no need to feed the paramecium to the juveniles, that is, the milk is stopped and the water is not changed, the paramecium will become less and less and maintain a certain concentration. Once paramecium is to be used, it is necessary to change the water, feed and skin 1 or 2 days in advance, and a large number of paramecium will appear on the second day.
3) Straw bales can be replaced 1 time in 2 3 months.
4) Fish insects in the pot or box where paramecium is raised should be removed with a cloth bag in time, otherwise paramecium will be eaten by fish insects.
4) Feeding methods for paramecium.
Directly fed with paramecium stock solution. Use a beaker to pick up the dense area, then float it in the juvenile container to be fed for 15 minutes and pour it in. This is a dangerous measure that is urgently needed and the density of paramecium is insufficient.
You can also use a sieve of more than 250 mesh or a cloth bag of nylon silk to catch it, sieve the paramecium stock solution with 80 mesh, concentrate it and rinse it with water before feeding the juveniles.
Some people say that artificial grey water (paramecium) cannot feed large fish. This is due to insufficient concentrations of reared paramecium. For a high survival rate of juvenile fish, a high concentration of paramecium is key.
The number of paramecium is closely related to feeding management. The main thing is to breastfeed, and the water change should be just right. The Beijing Zoo has bred large fish for many years, all of which are fed with paramecium, and a large number of them are supplied to primary and secondary school students in Beijing for biological experiments.
AMD open core means that the CPU manufacturer produces 4 cores or 6 cores, but because the technology is not mature enough, the market is stable, etc., some of the inner cores are blocked by the manufacturer. But these CPUs are indeed multi-core, so they use technical means to crack and open the core. So it's easy to understand, right? But not all CPUs can be turned on, the most common is the low-end 5000+
I guess I'm sick from the cold.
Now that it's so cold, we all have to cover ourselves with thick quilts when we sleep, and the bunnies also need to huddle together with their companions to keep each other warm when they sleep. I think it may be that I got a cold on the first night, and I didn't get ** the next day, plus I continued to be cold. You just put a piece of paper on someone's house...Does the paper have a thermal insulation effect?(Although rabbits have fur on their bodies, they are still fragile and their immunity is not strong). >>>More