The essential whorls of flower are androecium and gynoecium. These are the necessary whorls for reproduction in flowers since androecium produces... View Article
Some fibres are called synthetic fibres because these are artificial fibres prepared using chemicals. These are made of small units that join... View Article
Goitre is caused due to the lack of iodine in the diet. This is the most common cause of goitre. However, other causes of goitre include... View Article
The main difference between cycas and pinus is that the cycas is a plant genus consisting of small, palm-like trees and the stems are unbranched,... View Article
Genetic industry means the industry engaged in the reproduction and multiplication of plants. Examples of this industry include Plant Nurseries,... View Article
The atmosphere is composed of gases, water vapour and dust particles. This composition of the atmosphere is not static. It changes according to... View Article
Pollen-pistil interaction is a productive process comprising the identification of pollen followed by promotion or inhibition of the pollen. This... View Article
Answer: option (b) A crop field is an artificial ecosystem that is man-made. The ecosystem made by man for commercial or other benefits is... View Article
1. Sphenodon has a lizard like body and is about 2 feet long and the tail measures about 1/3rd of its body length. Sphenodon is a nocturnal... View Article
A 40 kg slab rests on a frictionless floor. A 10 kg block rests on top of the slab. The static coefficient of friction between the block and the... View Article
Answer: (c) both negatively and positively charged particles A cyclotron is used to accelerate both negatively and positively charged particles.... View Article
