Answer the following question given this paragraph: Algae are like plants mainly because they contain chloroplasts. This allows them to make food by photosynthesis. Algae are important producers in water-based ecosystems such as the ocean. On the other hand, algae lack other plant structures. For example, they don't have roots, stems, or leaves. Also unlike plants, some algae can move. They may move with pseudopods or flagella. Q: Algae are like plants mainly because they contain what? Choices: - organelles - cells - cell wall - chloroplasts A:
chloroplasts
(Question)
Answer the following question given this paragraph: Some solids are not crystals. Glass, or the rock obsidian, are solid. However, they are not crystals. In a crystal , the atoms are arranged in a pattern. This pattern is regular and it repeats. The image below shows how the atoms are arranged in halite (table salt) ( Figure below ). Halite contains atoms of sodium and chlorine in a pattern. Notice that the pattern goes in all three dimensions. Q: What type of solid has atoms arranged in a repeating pattern? Choices: - ions - metals - hydrocarbons - crystals A:
(Answer)
crystals
Ques: Answer the following question given this paragraph: The trillions of red blood cells in blood plasma carry oxygen. Red blood cells contain hemoglobin , a protein with iron that binds with oxygen. Red blood cells are made in the marrow of long bones, rib bones, the skull, and the vertebrae. These cells survive for about 120 days, and then they are destroyed. Mature red blood cells lack a nucleus and other organelles, allowing for more hemoglobin, and therefore more oxygen to be carried by each cell. Q: What is the protein that carries iron that binds with oxygen in red blood cells? Choices: - keratin - potassium - insulin - hemoglobin A:
Ans: hemoglobin
(Q).
Answer the following question given this paragraph: Ionic solutes separate into individual ions when they dissolve. Covalent solutes separate into individual molecules. Q: Covalent solutes separate into what when dissolved? Choices: - second molecules - new molecules - true molecules - individual molecules A:
(A).
individual molecules
Ques:Answer the following question given this paragraph: Scientists think that glycolysis evolved before the other stages of cellular respiration. This is because the other stages need oxygen, whereas glycolysis does not, and there was no oxygen in Earth's atmosphere when life first evolved about 3.5 to 4 billion years ago. Cellular respiration that proceeds without oxygen is called anaerobic respiration . Q: What do you call cellular respiration that does not need oxygen to proceed? Choices: - aerobic respiration - malolactic respiration - cellular breathing - anaerobic respiration A:

Ans:anaerobic respiration
Ques: Answer the following question given this paragraph: Another example of habituation is shown below ( Figure below ). Crows and most other birds are usually afraid of people. They avoid coming close to people, or they fly away when people come near them. The crows landing on this scarecrow have become used to a "human" in this place. They have learned that the scarecrow poses no danger. They are no longer afraid to come close. They have become habituated to the scarecrow. Q: A crow that becomes used to a scarecrow and lands on it is an example of what? Choices: - assimilation - adaptation - dissociation - habituation A:
Ans:
habituation