Levels of organization<span> in ecology include the population, community, ecosystem, and biosphere. An ecosystem is all the living things in an area interacting with all of the abiotic parts of the </span>environment<span>.
k12 I know the struggle I did this test in middle school</span>
Ecosystems maintain themselves by cycling energy and nutrients obtained from external sources. At the first trophic level<span>, </span>primary producers<span> (plants, algae, and some bacteria) use solar energy to produce organic plant material through photosynthesis. Herbivores—animals that feed solely on plants—make up the second trophic level. Predators that eat herbivores comprise the third trophic level; if larger predators are present, they represent still higher trophic levels. Organisms that feed at several trophic levels (for example, grizzly bears that eat berries and salmon) are classified at the highest of the trophic levels at which they feed. Decomposers, which include bacteria, fungi, molds, worms, and insects, break down wastes and dead organisms and return nutrients to the soil
I got this passage from Annenberg Learner
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The answer is B, use energy they take in from the environment to convert inorganic molecules into complex organic molecules.
Explanation:
Prophase - <em>Pairs of chromosomes separate and move to opposite ends of the cell.</em>
Metaphase <em>-Each pair of chromosomes lines up along the middle of cell.</em>
Anaphase <em>- Each chromosome moves towards, and pairs up with its mate.</em>
Telophase <em>- The nuclear membrane forms around the chromosomes. </em>
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<u><em>Hope this helps!</em></u>
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