Q: What are the building blocks of life? Read this paragraph and choose the correct option from the provided answers: Cells are the building blocks of life. This is clear from the photo in Figure below . It shows stacks upon stacks of cells in an onion plant. Cells are also the basic functional units of living things. They are the smallest units that can carry out the biochemical reactions of life. No matter how different organisms may be from one another, they all consist of cells. Moreover, all cells have the same basic parts and processes. Knowing about cells and how they function is necessary to understanding life itself. Choices: - muscles - seeds - bricks - cells A:
cells

Q: Scientists did not actually see viruses until what was invented? Read this paragraph and choose the correct option from the provided answers: Scientists did not actually see viruses for the first time until the 1930s. That's when the electron microscope was invented. The virus shown in Figure below was the first one to be seen. Choices: - magnifying glass - electronic scale - telescope - electron microscope A:
electron microscope

Q: Q: What are the simplest hydrocarbons? Read this paragraph and choose the correct option from the provided answers: Saturated hydrocarbons contain only single bonds between carbon atoms. They are the simplest hydrocarbons. They are called saturated because each carbon atom is bonded to as many hydrogen atoms as possible. In other words, the carbon atoms are saturated with hydrogen. You can see an example of a saturated hydrocarbon in Figure below . Each carbon atom is bonded to three hydrogen atoms in this compound, which is named ethane. Choices: - unsaturated hydrocarbons - complex carbohydrates - fossil fuels - saturated hydrocarbons A:
A: saturated hydrocarbons

Question: Q: What is the term for species evolving together? Read this paragraph and choose the correct option from the provided answers: Coevolution occurs when species evolve together. This often happens in species that have symbiotic relationships. Examples include flowering plants and their pollinators. Choices: - conjuration - interconnection - specmutation - coevolution A:
Answer: coevolution

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Q: Felsic, intermediate, mafic, and ultramafic are types of composition of what rock group? Read this paragraph and choose the correct option from the provided answers: Igneous rocks are classified by composition and texture. The composition can be felsic, intermediate, mafic, or ultramafic. The composition depends on the minerals the rock includes. A felsic rock will contain felsic minerals. Choices: - Sedimentary - asteroids - metamorphic - igneous A:
**Answer**
igneous

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Q: The single circular dna chromosome of bacteria is not enclosed in what, but instead occupies a specific location called the nucleoid within the cell? Read this paragraph and choose the correct option from the provided answers: Binary Fission Due to the relative simplicity of the prokaryotes, the cell division process, called binary fission, is a less complicated and much more rapid process than cell division in eukaryotes. The single, circular DNA chromosome of bacteria is not enclosed in a nucleus, but instead occupies a specific location, the nucleoid, within the cell (Figure 10.2). Although the DNA of the nucleoid is associated with proteins that aid in packaging the molecule into a compact size, there are no histone proteins and thus no nucleosomes in prokaryotes. The packing proteins of bacteria are, however, related to the cohesin and condensin proteins involved in the chromosome compaction of eukaryotes. The bacterial chromosome is attached to the plasma membrane at about the midpoint of the cell. The starting point of replication, the origin, is close to the binding site of the chromosome to the plasma membrane (Figure 10.15). Replication of the DNA is bidirectional, moving away from the origin on both strands of the loop simultaneously. As the new double strands are formed, each origin point moves away from the cell wall attachment toward the opposite ends of the cell. As the cell elongates, the growing membrane aids in the transport of the chromosomes. After the chromosomes have cleared the midpoint of the elongated cell, cytoplasmic separation begins. The formation of a ring composed of repeating units of a protein called FtsZ directs the partition between the nucleoids. Formation of the FtsZ ring triggers the accumulation of other proteins that work together to recruit new membrane and cell wall materials to the site. A septum is formed between the nucleoids, extending gradually from the periphery toward the center of the cell. When the new cell walls are in place, the daughter cells separate. Choices: - atom - molecules - protons - nucleus A:
**Answer**
nucleus