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Biology Online Quiz

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Basic Biology Online Test

  • This is an online quiz to test your knowledge of Basic Biology.
  • This Online Test is useful for academic and competitive exams.
  • Multiple answer choices are given for each question in this test. You have to choose the best option.
  • After completing the test, you can see your result.
  • There are 10 questions in the test.
  • There is no negative marking for wrong answers.
  • There is no specified time to complete this test.
  • EduDose has provided this test in both English and Hindi medium.

An ecosystem consists of:

An ecosystem consists of a biotic community and its non-living elements. It consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows.

Which of the following is meant for the ex-situ conservation of various species?

Germplasm bank is meant for the ex-situ conservation of various species. Ex-situ conservation is the technique of conservation of all levels of biological diversity outside their natural habitats through different techniques like zoo, captive breeding, aquarium, botanical garden, gene bank and Germplasm banks.

The method not used as a Biological control is:

Biological control is the use of living organisms to maintain pest populations below damaging levels. Predators of a pest, Pheromone traps and neem extracts are used as a Biological control. Pesticides are not used as a Biological control as it is a chemical agents.

Which of the following is considered to be the best cholesterol?

There are two main types of cholesterol: low-density lipoprotein (LDL), or “bad” cholesterol, and high-density lipoprotein (HDL), or “good” cholesterol. HDL cholesterol is considered to be the best cholesterol because it helps remove other forms of cholesterol from the bloodstream.

The constituents of automobile exhaust that can cause cancer is/are:

Polycyclic hydrocarbons (PAHs) are the constituents of automobile exhaust that can cause cancer. PAHs are ubiquitous environmental pollutants generated primarily during the incomplete combustion of organic materials (e.g. coal, oil, petrol, and wood). These PAHs are carcinogenic in nature i.e. leads to cancer.

Cereals are a rich source of:

Carbohydrates can be divided into three main categories: sugar, fiber and starch. Starches are the most commonly consumed type of carbohydrate. Cereal grains and root vegetables are a rich source of starches.

The disease that has been eradicated from the world is:

Smallpox has been eradicated from the world. It was a serious infectious disease caused by the variola virus. World Health Organization (WHO) declared smallpox eradicated in 1980.

The age of a tree can be determined more or less accurately by?

The age of a tree can be determined by counting the rings from the pith of the trunk to the bark. Tree rings are the most accurate indicator of a tree's age. Finding the age of a tree by counting annual growth rings is called dendrochronology.

Amoebic dysentery is caused by:

Amebiasis is an intestinal (bowel) illness caused by a microscopic (tiny) parasite called Entamoeba histolytica, which is spread through human feces (poop).

Anemia occurs due to the deficiency of:

Anemia occurs due to the deficiency of folate (folic acid or vitamins B9). Iron deficiency anemia is the most common type of anemia caused by a shortage of iron in the body. Vitamin deficiency anemia is a lack of healthy red blood cells caused by lower than usual amounts of vitamin-B12 and folate.

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