Science & Mathematics Questions & Answers

Science & Mathematics Questions & Answers

Why do some insects get attracted towards light?

Why do some insects get attracted towards light?

Radiation emitted by light sources are responsible for attracting insects towards it. A series of experiments have confirmed that a narrow band of infra-red radiation emitted by light sources attract insects. A study was conducted on moths. It was observed that, only the males of the species got attracted towards the light source, mistaking it for female moths. Female moths …

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How can you distinguish between poisonous and non-poisonous snakes?

How can you distinguish between poisonous and non-poisonous snakes?

All snakes have poison glands, but the presence of fangs for injecting venom and the type determines whether a snake is poisonous or not. Fangs are normally present in the upper jaw. Snakes with tubular fangs, small scales on the head and wide belly-scales running across its width are poisonous. Snakes with solid fangs or without fangs, and short scales …

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Why does a wasp sting result in swelling?

Why does a wasp sting result in swelling?

The venom of a wasp contains histamine, sarotonin acetylecholine and severaler kinins. These chemical compounds cause dilatation and increased permeability of blood capillaries, leading to oozing of a fluid.This causes local redness and swelling. Funny Logic The sting presses one into immediate action-to apply an antidote on the right spot.

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How is musk obtained from musk-deer?

Musk is produced by the male musk-deer (Moschidae family), found in the wet mountain forests of the Himalayas. A gland in the abdomen of the deer produces musk, a pungent oily jelly which is used in perfumes to make the scent last longer. The musk-deer has become an endangered species because it is killed for the gland. Funny Logics By …

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If monkeys have evolved into human beings, then how are some monkeys still around?

If monkeys have evolved into human beings, then how are some monkeys still around?

The theory is not entirely acceptable. Some feel that homo sapiens (our ancestors) and monkeys have both evolved from a common stock called anthropoid mammals. The monkeys diverted from this evolution some 2.3 million years ago, while modern human beings came through the homo habilis, homo erectus and homo sapiens route and transformed into the present form. Funny Logics Because …

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What is the difference between virus and fungi?

What is the difference between virus and fungi?

Virus is a Latin word meaning poison. Viruses are non-cellular ultramicroscopic, particles of protein and nucleic acids. They grow and reproduce naturally in the living cells of more complex organisms where they may cause disease. Virus has a variety of shapes, sizes and complexities. Several viruses infect plant other than bacteria and blue-green algae. A large number of them infect …

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What is the difference between a turtle and a tortoise?

What is the difference between a turtle and a tortoise?

According to the biological classification of animals, reptiles of Chelonia order are turtles. They are found in most parts of the world and can be marine or non-marine. Their length ranges from less than ten centimeters to more than 2m. They feed on soft plant material or small animal or both. Turtles of a particular family. Testudinidae are known as …

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How do butterflies grow wings when caterpillars don’t have them?

How do butterflies grow wings when caterpillars don't have them?

Butterflies and caterpillars are different forms of the same insect. In the process of metamorphosis, the egg hatch to form a larva or a caterpillar. This is the feeding stage, in which the larva feeds and grows. At some stage, it undergoes another phase – the pupa, which is the non-feeding stage. At this stage the insect starts changing its …

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