What is collateral?
Lenticels are aerating pores in the bark of woody plants for the exchange of gases. The lenticels appear on the... View Article
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Why do meristematic tissues lack vacuoles?
Seven Components of a Balanced Diet- Carbohydrates. Carbohydrates provide energy to the cells, organs and tissues in the form of... View Article
Which part of alimentary canal receives bile from the liver? (a) Stomach (b) Small intestine (c) Large
Endoscopy is a method of observing inside the body by the use of endoscope. The principle of total internal reflection... View Article
Weeds are the: (a) main crop plants (b) insects and pests (c) unwanted plants growing along with the crop
The animals that live in a particular region, habitat or time is known as fauna. Fauna was first used as... View Article
How is silk fibre obtained from the cocoon?
The body cavity is reduced in some animals and filled with blood, thus it is called haemocoel. The animals belonging... View Article
What is meant by non-farming activities? Explain with examples
Our blood is made up of liquid and solids. The liquid part, called plasma, is made of water, salts, and... View Article
Define leguminous crops?
Eukaryotic cells contain membrane-bound organelles, while prokaryotic cells do not.Organelles are absent in prokaryotic cell, but it contains the protein... View Article
What are the differences between linear motion and circular motion?
Symbiotic nutrition is the relationship between organisms in which they share their nutrition and shelter. This mutual relationship may or... View Article
Explain why sound cannot travel through vacuum?
Answer: (a) Smooth endoplasmic reticulum. Lipid molecules in the cell are synthesized by the Smooth endoplasmic reticulum. The rough endoplasmic... View Article
What is the difference between a pyramid and prism?
Fungi are heterotrophic eukaryotic organisms. Some of them use decaying organic material as food and are therefore called saprotrophs. Saprophytic... View Article
The girth of stem increases due to 1) apical meristem 2) lateral meristem 3) intercalary meristem 4) All of the above
Vitamin A (Retinoic acid): Men = 900 mcg; Women = 734 mcg (kale, eggs, cod liver oil, apple, orange, carrots,... View Article
Under what condition is the magnitude of the average velocity of an object equal to its average speed?
Crops that have a life span of one year or less is not as short-term crops. a crop is having... View Article
Define breathing and explain the mechanism of breathing in human being.
Chyle is a milky bodily fluid that forms in the small intestine. Chyme, on the other hand, is a mixture... View Article
The modulus of elasticity is dimensionally equivalent to a) strain b) stress c) surface tension d) Coefficient of viscosity
There are plants which are having parts which can be edible. Here are some example of those type of plants... View Article
What is meant by insulated copper wire?
Important characteristics of Protists: They are mostly unicellular but some are multicellular. They are either free-living or parasitic. They are... View Article
A cell will swell up if (a) The concentration of water molecules in the cell is higher than the concentration of water molecules in surrounding medium (b) The concentration of water molecules in surrounding medium is higher than water molecules concentration in the cell (c) The concentration of water molecules is same in the cell and in the surrounding medium (d) Concentration of water molecules does not matter
The correct option is (b) The concentration of water molecules in the surrounding medium is higher than water molecules concentration in... View Article
Why do meristematic tissues lack vacuoles?
Meristematic cells are the cells that divide frequently. These cells need dense cytoplasm and thin cell walls. Meristematic cells have... View Article
What is the scientific name of mulberry?
The liver is the largest gland in the human body which secrets bile. Bile juice is produced in the liver... View Article
Weeds are the: (a) main crop plants (b) insects and pests (c) unwanted plants growing along with the crop – Biology Q&A
The correct answer is(c) unwanted plants growing along with the crop What is a weed? The unwanted plants which grow... View Article
Upper part of sea/aquatic ecosystem contains (a) plankton (b) nekton (c) Both (a) and (b) (d) benthos
A pile of cocoons is used for obtaining silk fibres and the cocoons are kept under the sun or boiled... View Article
