The organelle that stores food, etc. is the vacuole.
Answer:
density-independent factors include food or nutrient limitation, pollutants in the environment, and climate extremes, including seasonal cycles such as monsoons. In addition, catastrophic factors can also impact population growth, such as fires and hurricanes.
Scientists sometimes make discoveries that lead to a need for new laws. This illustrates the general situation of science not just biology in pursuing scientific inquiry. Some of the classical experiments like the Mendel's crosses of the pea plant to understand the inheritance pattern of various observed traits required Mendel to come up with a hypothesis turned theory of independent assortment of genes. With substantial experimental trails on pea plants this theory turned into a law due to the increased number of supporting evidence.
PbCr is the correct answer I believe
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<span>Ions are another name for charged atoms. Some elements are electropositive, and some are electronegative. Electropositive elements such as metals like to give up electrons, thus taking on a positive charge. Electronegative elements such as chlorine attract electrons, so they become negative. When electropositive and electronegative atoms meet and exchange ions, they take on opposite charges. Because positive and negative charges attract, these charged atoms become attracted to one another. This attraction forms an ionic bond that keeps the ions together.</span>
