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Anonymous users2024-02-07Uh, I have! Write down your email address! ps: Add more rewards, I finally got it from the teacher! It's not easy, I have all the history of biology! It was from 2011.
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Anonymous users2024-02-061, carbon dioxide, 2, in the pulmonary capillaries, oxygen is exchanged with carbon dioxide, absorbing oxygen and releasing carbon dioxide 3, oxyhemoglobin.
4. Pulmonary capillaries.
j is the pulmonary vein.
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Anonymous users2024-02-051. Carbon dioxide.
2. Oxygen. 3 hemoglobin.
4.Capillaries in the lungs.
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Anonymous users2024-02-04Is the main form of porridge absorbed in the small intestine glucose, starch or maltose ?
Glucose starch is digested and hydrolyzed into glucose by amylase, which is absorbed by the small intestine.
In the body's circulatory system, the highest oxygen content is (
a aorta b pulmonary artery (I didn't make a typo, but I checked it and the veins are probably large).
c inferior vena cava d superior vena cava (c d feels about the same, except for the direction, c may be big).
It should be the pulmonary veins. Because the blood in the pulmonary veins has just undergone gas exchange, the oxygen content is the highest.
Patient A has an upper arm injury, and patient B has pneumonia and is given intravenous injections at the same time, so which drug reaches the affected area first, and the flow of the drug in the body is correct.
1 Left atrium 2 Right atrium 3 Left ventricle 4 Right ventricle 5 Aora 6 Pulmonary artery 7 Superior and inferior vena cava 8 Pulmonary veins 9 Pulmonary capillaries (it will look a little hard).
A A 7 2 4 6 9 8 1 3 5 Affected area.
b B 7 2 4 6 9 8 1 3 5 Affected area.
C A arrives directly after the injection (this is not possible, it has to come down from the arteries of the heart).
D B 7 2 4 6 9 Affected area (it feels like one of a b, but I am not familiar with the sequence).
It should be B that arrives first. Because after intravenous injection, it first collects into the superior and inferior vena cava and enters the pulmonary circulation. Pick B.
In the case of systemic circulation, it is the left ventricle - the aorta - the capillaries - the superior and inferior vena cava - the right atrium - (pulmonary circulation) the right ventricle - the pulmonary artery - the pulmonary capillaries - the pulmonary veins - the left atrium - the left ventricle.
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Anonymous users2024-02-03Glucose. Glucose is the end product of starch digestion, and maltose is only an intermediate product in the aorta.
。The systemic arteries contain more oxygen than the veins, and the pulmonary veins contain more oxygen than the arteries. The pulmonary veins contain more oxygen than the aorta.
Select the circulation of the drug to the diseased site in the D A patient 7 2 4 6 9 8 1 3 5 the diseased area. To be conveyed to the upper arm.
Patient B (pneumonia) Circulation of the drug to the affected site 7 2 4 6 9 Affected area. It takes effect when it enters the lungs.
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Anonymous users2024-02-02Biology: A living individual.
Biosphere: It is the largest ecosystem on Earth, including the lower layers of the atmosphere, the hydrosphere and the upper layers of the lithosphere (mainly the soil layer), and there is life in the biosphere.
Control experiments: If the two sets of experiments are the same except for one factor, then the two sets of experiments are called control experiments.
Biological factors: The activities of any other animal, plant or microorganism that affect the growth, morphology, development and distribution of organisms are a class of ecological factors, which can be divided into intraspecific and interspecific relationships.
Ecosystem: refers to the collective term for all living organisms and the environment in a specific environment. (It can also be more specifically defined as a unified whole that interacts with various organisms and between biological communities and their inorganic environments through energy flows and material cycles within a certain spatial and temporal range).
Food chain: The sequence in which various organisms closely link this organism with that organism through a series of eat-and-eat relationships, and the sequence in which such organisms are linked to each other by food-vegetative relationships is called the food chain in ecology.
Food webs: In ecosystems, various food chains are intertwined and interconnected, forming an intricate network structure.
Cell: The basic structural and functional unit of an organism surrounded by a membrane that can reproduce independently. It is generally composed of plasma membrane, cytoplasm and nucleus (or nucleus), which is the basic unit of life activity.
Sectioning: A thin slice of tissue cut into tissues with a special knife for observation and study under a microscope.
Smear: A preparation method in which a specimen suspension is applied to a glass slide to make a thin film. It is used for microscopic observation.
Mounting: When observing an object under a microscope, the object to be observed is placed on a glass slide, which is called mounting. It is divided into temporary and permanent filming.
Tissue: A group of cells and interstitium that are similar in morphology and functionally identical, and are called tissues.
Organs: Structures made up of different cells and tissues (e.g., heart, kidney, leaves, flowers) in animals or plants that perform specific functions and form systems together with other structures that share a common function.
System: The structure of the different levels of living organisms is considered as a whole and is called a "system". Such as the skeletal system.
Transpiration: The process by which water is lost into the atmosphere in a state of water vapor from the surface of a living plant (mainly leaves).
Photosynthesis: The process by which green plants and certain bacteria use chlorophyll to convert carbon dioxide and water into organic matter (mainly starch) and release oxygen when exposed to visible light.
Respiration: The total process in which the organic matter in the organism undergoes a series of oxidative decomposition in the cell to finally produce carbon dioxide or other products and release energy, which is called respiration.
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Anonymous users2024-02-01Belch... Then you're not going to look for a textbook.
Light propagates in a straight line and is refracted and reflected, and heat is a three-state six-variation.
Do more exercises. Teach you a quick way to learn, it's as simple as writing the answers on the practice questions and looking at them again, whatever method you use, just memorize them. It's a quick approach, but it's also flawed, and you can find out for yourself!
Of course, you have to listen carefully in class, and the homework left by the teacher must be completed independently, and you should ask questions frequently if you don't know, or wait for the teacher to talk in class (junior high school class time is relatively relaxed, the teacher should teach the exercises, if you don't talk about it, ask the teacher, the teacher will not say you). In addition, don't look for too many and too difficult extracurricular questions, which will increase the pressure, but a moderate amount is still possible. The content of the third year of junior high school here is more than the content of the second year of junior high school, and the part of electricity must be learned well. >>>More
Send me an email and I'll send you seven or eight.
pwd=1234 Extraction code: 1234 Introduction: High-quality materials for junior high school chemistry**, suitable for teachers at all stages, daily tutoring for students, sprint for the high school entrance examination, and skill improvement learning.