Acomet is a? a)meteoroid that travels through earth’s atmosphere and hits the surface. b)meteoroid that burns up in earth’s atmosphere, producing a streak of light. c)small, rocky object that orbits the sun and is usually found in a belt between the orbits of mars and jupiter. d)small object made of ice and dust that orbits the sun and forms a coma as it approaches the sun.

Which of the following is an example of a tissue on the digestive system a.the stomach b.smooth muscle that lines the stomach c.nerve cells in the stomach d. enzyme molecules in the stomach

Give an example of a trait that is controlled by more than one gene.

This is a typical grassland food web. it is also a small picture of an important cycle on earth: the carbon cycle. describe how the carbon gets into this food web. a) bacteria and fungi, the decomposers, recycle carbon from dead organisms. b) carbon is found in the grass and is passed from one level to the next in this food web. eliminate c) all living things give off carbon dioxide as a by-product of respiration and it is released into the atmosphere. d) plants use carbon dioxide as a reactant in photosynthesis, to make usable chemical energy in the form of a sugar.