1. How is the age of a tree determined?   By counting the number of its branches   By measuring its height   By measuring its girth   By counting the annual rings in a cut trunk   Hint Half-n-half Clue   2. Fish breathe through   Gills   Fins   Lungs   Skin   Half-n-half Clue   3. The feathers of birds are good insulators.   False   True   4. Which of the following are known as "pisces"?   Reptiles   Fish   Birds   Mammals   Half-n-half Clue   5. What forms after the flowers have pollinated?   New Branches   Leaves   Thorns   Fruits   Half-n-half Clue   6. What is the name given to the green pigment in plants?   Chlorophyll   Tendrils   Starch   Stomata   Half-n-half Clue   7. What is the everyday name for the plants that are called Gramineae?   Nuts   Grasses   Legumes   Pulses   Half-n-half Clue