Answer: passive transport requires chemical energy to move nutrients from areas of low concentration to areas of high concentration
Explanation:
Answer: The symbiotic nitrogen-fixing bacteria invade the root hairs of host plants, where they multiply and stimulate formation of root nodules, enlargements of plant cells and bacteria in intimate association. Within the nodules the bacteria convert free nitrogen to ammonia, which the host plant utilizes for its development. brainliest?
Explanation:
Answer:
2 elements chemically joined together. An emample is Ironoxie
Explanation:
1. Answer;
A. energy flows in one direction and nutrients recycle.
Explanation;
-The movements of energy and nutrients through living systems are different because the energy flows in one direction and nutrients recycle.
-Energy is transferred between organisms in one direction in a food chain, but that interconnected food chains make a food web.
-Most ecosystems get their energy from the Sun. Producers can use sunlight to make usable energy by converting it into chemical energy or food. Consumers get some of that energy when they eat producers, they pass some of the energy to other consumers when they are fed on.
2. Answer;
Nitrogen fixation.
Nitrogen fixation depends on bacteria.
Explanation;
Nitrogen fixation is the process by which nitrogen is taken from its stable gas form (N2) in air and then converted into other nitrogen compounds (such as ammonia, nitrate and nitrogen dioxide) useful for other chemical processes.
-The nitrogen fixing bacteria are microorganism capable of converting atmospheric nitrogen into forms usable by plants. They include the free-living bacteria, which includes cyanobacteria, azotobacter etc. and others such as mutualistic bacteria such as Rhizobium.
If a solid object is cut in half, the mass and volume are both divided by two, but the density remains the same.
<h3>What is an intensive property?</h3>
Intensive property is a property that does not depend on the quantity of a substance while an extensive property depends on the quantity.
Mass and volume is an example of extensive physical property while density is an example of intensive property.
This suggests that if a solid object is cut in half, the mass and volume are both divided by two, but the density remains the same.
Learn more about intensive property at: brainly.com/question/13733851
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