Practice MCQ Questions and answers on Biology-GK

Normal adult human male has 14 gram of haemoglobin/100 gram of blood.

Wilting is a condition when the amount of water lost from the plant during transpiration is greater the amount of water absorbed from the soil. It is the loss of rigidity of non-woody parts of the plants. This occurs when the turgor pressure in non-lignified plant cells falls towards zero, as a result of diminished water in the cells.

Monotremes are different from other mammals because they lay eggs and have no teats. Monotremes are different from other mammals because they lay eggs and have no teats. The milk is provided for their young by being secreted by many pores on the female's belly.

Here Homologous Means having the same relation or relative position or structure.
Here snakes poison is in glands and here salivary glands are in Vertebrates

Radical vascular bundles are those in which xylem and phloem occur on the different radii.

Phototropism is one of the many plant tropisms or movements which respond to external stimuli. Growth towards a light source is called positive phototropism, while growth away from light is called negative phototropism (skototropism).

Plant have cellulose while animals lack it.

Osmosis is defined as the flow of solvent molecules from a region of their higher concentration to a region of their lower concentration across a semipermeable membrane. Osmosis does not explains movement of solute particles or solution.

Photosynthesis is a process which is reductive, endergonic and anabolic.

Gregor Mendal performed his classical experiment on pea.