They form a bond between atoms. covalent<span> compounds are formed only by the interactions of non-metal atoms. hope it helps :)</span>
Wastes and excess water are transported outside the cell by contractile vacuoles. ... Classification: Eukaryota (organisms with nucleated cells), Kingdom Protista (flagellates, amoebae, algae, and parasitic protists), Phylum Protozoa (single-celled organisms), Class Sarcodina (having pseudopods).
Answer:
Logistic Growth Model
Explanation:
The logistic model is realistic because it suggests the fact that the population of species is regulated and controlled by the carrying capacity (maximum members that an ecosystem supports) of the ecosystem. The population becomes small when the carrying capacity decreases.
Two different types of succession—primary and secondary—have been distinguished. Primary succession occurs in essentially lifeless areas—regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier.
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Plants produce carbon dioxide as a waste product during aerobic respiration, whereas oxygen is produced as a waste product during photosynthesis.
