Biology Questions

Which statement is true? Lipids are a type of fat. Fats are a type of lipid. Fats and lipids are separate and unrelated substances. All lipids are fats, and all fats are lipids.
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An important role of fungi in an ecosystem is A) performing photosynthesis. B) breaking down dead organisms C) making alcohol D) killing bacteria
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Cellular respiration generates a total of 36-38 ATP molecules. How many of these come solely from glycolysis? 15 ATP molecules 2 ATP molecules 30 ATP molecules
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In a chemical reaction, water decomposes to form hydrogen and oxygen. What is the correct term for the water? A. an element B. an atom C. a product D. a reactant
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Discuss how changes in organisms within an environment affect their survival. Specifically discuss the effects of a gene mutation for color in beetles.
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what does mechanical digestion in the stomach involve ? ( 1point ) A. absorption of nutrients by villi B. pepsin and bile C. smooth muscle contractions D. bile and pancreatic fluid
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DNA from one species differs from the DNA of another species in its a)base ratios b)sugars c)phosphate groups d)all of the above
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According to cell theory, all cells carry out the functions needed to sustain life. That means all cells must contain A) DNA. B) a nucleus. C) organelles. D) a control center.
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A scientist researching salamanders has obtained two different specimens. Under what conditions would he classify them as belonging to different species?
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The first strands of DNA were observed through which microscope? tunneling microscope simple microscope compound light microscope electron microscope
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. Alpha Particles a. What is the mass number of an alpha particle? b. What is the identity of an alpha particle? c. What kind of charge does an alpha particle have?
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Which is an effective way to manage stress? Practice multitasking. Eat a high-protein diet. Keep an active calendar. Maintain a regular sleeping schedule.
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during normal mitotic cell division a parent cell having four chromosomes will produce two daughter cells each containing what
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What system includes oxygen, nitrogen, and ozone? a. geosphere b. hydrosphere c. atmosphere d. biosphere
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DESCRIBE how thermal energy and temperature are similar. How are they different?
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A caterpillar represents which stage in the life cycle of an insect? A. pupa B. larva C. adult D. egg
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Which is most likely an acquired trait in horses? A. color of fur B. length of ears C. ability to run D. a slight limp
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Which of these organisms needs care from its parents after birth? A. frog B. turtle C. mouse D. snake
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