Answer the following question given this paragraph: Matter and energy are the most basic concepts in physical science. Watch this video about matter and energy, and then answer the questions below. Q: What are considered to be the most basic concepts in the field of physical science? Choices: - change and energy - energy and motion - force and matter - matter and energy A:
matter and energy
(Question)
Answer the following question given this paragraph: Unlike nonvascular plants, all vascular plantsincluding seedless vascular plantshave a dominant sporophyte generation. Seedless vascular plants include clubmosses and ferns. Figure below shows a typical fern life cycle. Q: Do nonvascular or vascular plants have a dominant sporophyte generation? Choices: - nonvascular - deciduous - perennial - vascular A:
(Answer)
vascular
Ques: Answer the following question given this paragraph: Chloroplasts Like the mitochondria, chloroplasts have their own DNA and ribosomes, but chloroplasts have an entirely different function. Chloroplasts are plant cell organelles that carry out photosynthesis. Photosynthesis is the series of reactions that use carbon dioxide, water, and light energy to make glucose and oxygen. This is a major difference between plants and animals; plants (autotrophs) are able to make their own food, like sugars, while animals (heterotrophs) must ingest their food. Like mitochondria, chloroplasts have outer and inner membranes, but within the space enclosed by a chloroplast's inner membrane is a set of interconnected and stacked fluid-filled membrane sacs called thylakoids ( Figure 4.17). Each stack of thylakoids is called a granum (plural = grana). The fluid enclosed by the inner membrane that surrounds the grana is called the stroma. Q: Like the mitochondria, chloroplasts have their own dna and ribosomes, but chloroplasts have an entirely different function. chloroplasts are plant cell organelles that carry out what? Choices: - reproduction - digestion - growth - photosynthesis A:
Ans: photosynthesis
(Q).
Answer the following question given this paragraph: Acids can dissolve many metals; a spilled acid can lead to contamination. Q: What corrosive substances capable of dissolving many metals can cause contamination if spilled? Choices: - salts - bases - ions - acids A:
(A).
acids
Ques:Answer the following question given this paragraph: Q: How long are microfilaments? Choices: - 9 nm - 4 nm - 7 m - 7 nm A:

Ans:7 nm
Answer the following question given this paragraph: Fresh water is essential for good crops. In some areas of the world, there is enough rain to accomplish this task. In other locales, water must be provided so the crops will grow. Worldwide, irrigation covers about 18% of farm land and produces some 40% of crops. A major source of cleaner water in many parts of the world is provided by the process of desalinization . Q: Which process helps provide cleaner water for agriculture? Choices: - purification - sterilization - osmosis - process of desalinization A:
process of desalinization