Which of the food chains shown would be best from an energy-transfer
point of view?

grain --> human

sun energy --> plants --> grain -> cattle -> human

ooo
algae -> tadpole --> fish -> human

insect -> trout -> human

Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.

Match the pollutants. 1. a chlorofluorocarbon smoke 2. a biodegradable organophosphate insecticide freon 3. particle pollution paint 4. hazardous waste monoxide 5. carbon is completely burned malathion 6. carbon is incompletely burned dioxide

To be or not to be that is da question