A. To make more dust storms. B. To keep the soil flying. C. To keep the soil to the ground. D. To create more rocks. 相关知识点: 试题来源: 解析 C解析:题干问的是cyanohacteria(固氮蓝藻)有何主要作用。根据定位句可以推知其具有holding the soil in place as it weathers out of the ...
NCERT solutions for CBSE and other state boards is a key requirement for students. Doubtnut helps with homework, doubts and solutions to all the questions. It has helped students get under AIR 100 in NEET & IIT JEE. Get PDF and video solutions of IIT-JEE Mains & Advanced previous year pap...
Reproduction Of Cyanobacteria Cyanobacteria depend upon asexual methods for its division. Binary fission and fragmentation are most common methods. No sexual methods as there are no formation of gamete and there is absence of meiosis. However, conjugation, transformation and transduction do occur. Spore...
声明: 本网站大部分资源来源于用户创建编辑，上传，机构合作，自有兼职答题团队，如有侵犯了你的权益，请发送邮箱到feedback@deepthink.net.cn 本网站将在三个工作日内移除相关内容,刷刷题对内容所造成的任何后果不承担法律上的任何义务或责任
What is a producer? Why are plants called producers?Food Chains:Food chains ensure the survival of species within an ecosystem. Such systems are complex and hierarchical. Within the food chain, there are producers, consumers, and decomposers....
- The cell wall of cyanobacteria is made up of mucopolysaccharides and has a two-layer structure. The outer layer consists of lipopolysaccharides (LPS), while the inner layer is composed of peptidoglycan. 6. Vacuoles: - Unlike many green algae, cyanobacteria do not have large vacuoles. Instead...
So, what is count of bacteria that is still present in the vessel after cleaning? What is the name of the bacteria that help in dissolving the nitrogen in soil? Which of the following act as decomposers in an ecosystem?(a) Lactobacillus bacteria (b) Cyanobacteria(c) Putrefying bacteria (...
Cyanobacteria, also known as blue-green algae, are microscopic, photosynthetic bacteria. They are prokaryotic, meaning their cellular structure is simple, without a defined nucleus. Algae, on the other hand, are primarily eukaryotic, which means they have complex cells with a defined nucleus and or...
What is cyanobacteria? Give two specific examples of eukaryotic organisms. What are insectivorous plants? Give an example. Which type of organisms evolved first? Explain. (a) Prokaryotes (b) Eukaryotes. Select the correct answer and explain. Which of the following was not necessary for the evolut...
Diatoms are an important part of the phytoplankton, which produce a great deal of the planet’s oxygen through photosynthesis and form the base of many marine food chains. Kelp seaweeds can form extensive seafloor “forests,” which are of great ecological importance. Cyanobacteria Today, these ...