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Questions in biology

[Done] Most of the mass of an atom is concentrated in the nucleus.

[Done] Most cells are porous to water and other materials but strong enough to support and protect them.

[Done] The process of grouping things based on their similarities is called what?

[Done] How are centipedes adapted for a predatory way of life?

[Done] Which is not a limiting factor in the environment? A. Food B. Money C. Shelter D. Water

[Done] How do the animals in an ecosystem mainly acquire the Sun's energy?

[Done] Which population of organisms would begin the flow of energy through a desert food web? A. Coyotes B. Cactus finch C. Beaded lizards D. Mesquite shrubs

[Done] How are photosynthesis and cellular respiration opposite in terms of carbon dioxide?

[Done] Which of the following events is a part of the light reaction of photosynthesis? A. Production of carbohydrates B. Splitting up of water molecules C. Release of carbon dioxide

[Done] Selectively permeable membranes allow only certain materials to pass through them. True or False?