(Q).
Answer the following question given this paragraph: Primary succession occurs in an area that has never before been colonized. Pioneer species include bacteria and lichens that can grow on bare rock and help make soil. Q: What kind of succession occurs in an area that has never before been colonized? Choices: - addition succession - secondary succession - support succession - primary succession A:
(A).
primary succession

(Q).
Answer the following question given this paragraph: Oxygen has the second highest electronegativity of any element; consequently, it prefers to share or accept electrons from other elements. Only with fluorine does oxygen form compounds in positive oxidation states. Q: Oxygen has the second highest electronegativity of any element; consequently, it prefers to share or accept electrons from other elements. only with fluorine does oxygen form compounds in this? Choices: - liquid oxidation states - chemical oxidation states - negative Oxidation States - positive oxidation states A:
(A).
positive oxidation states

(Q).
Answer the following question given this paragraph: Bacteria are surrounded by a cell wall consisting of peptidoglycan . This complex molecule consists of sugars and amino acids. The cell wall is important for protecting bacteria. The cell wall is so important that some antibiotics, such as penicillin, kill bacteria by preventing the cell wall from forming. Q: What are surrounded by a cell wall consisting of peptidoglycan? Choices: - viruses - protozoa - amoeba - bacteria A:
(A).
bacteria