<span>Chromosomes are visible at any time but are most easily seen through a simple microscope when they meet at the plate during the metaphase stage of mitosis because the chromosomes are jumbled together and then form the traditional X-shape.
They are easy to see because a single strand of DNA from H. sapiens is about 6 feet long!
Good luck on that test of your and i hope you past the test</span><span />
The benefit resulting from resource partitioning is that it promotes coexistence in the ecosystem.
<h3>What is Resource partitioning?</h3>
This talks about similar species coexist with one another through the usage of resources in different ways.
This helps to prevent and reduce competition in the ecosystem so they can coexist.
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This is really basic, containing much on the history of cell biology. The cell theory, or cell doctrine, states that all organisms are composed of similar units of organization, called cells. The concept was formally articulated in 1839 by Schleiden & Schwann and has remained as the foundation of modern biology.
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.