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Is Tomato a Vegetable or a Fruit?
We think the tomato is a vegetable, but it is actually a fruit. Because it is not sweet and is used for providing flavour to food, we think of it as a vegetable. The tomato is originally from Mexico. The word “tomato” comes from the Spanish tomate, which in turn comes from the Nahuatl word tomatotl. Spanish explorers who went to South America about 500 years ago, brought back the tomato to Europe. The French called them love apples, while the British called them apples of gold....
Can Plants be Parasites?
All living things are dependent either on other animals or plants for their food. Animals must constantly go in search of food. But plants remain fixed at one place. Some plants make their own food by using energy from sunlight to convert carbon dioxide from the air and water from the soil to make sugar. Green leaves of the plants contain chlorophyll that carry out this process called photosynthesis. But a large number of plants are unable to produce their own food because of the absence of chlorophyll....
Does the Black Widow Spider Kill her Mate?
Largest of the cobweb weavers, the black widow or Latrodectus Mactans is a poisonous spider. They get their ignoble name because the females commonly eat their mates after mating (as is common among spiders) and hence are often widows. They comprise about six species and inhabit warmer regions of the world. Shiny black in colour with a reddish hourglass shape on the underside of her spherical abdomen, the female black widow is about one inch long....
Can Frog Fly?
You must have seen frogs that jump, but have you seen frogs that can fly? Actually not fly, but glide. One member of the treefrog family which is found in Malaya can fly. It flies not for adventure, but to catch its prey. It is called Wallace’s Treefrog and is more equipped to chase flying insects than other frogs. Flying or gliding tree frog (Agalychnis spurrelli) is an endangered amphibian. IT lives in Amazon rain forest of Ecuador Colombia Panama and Costa Rica....
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