What does obliterated central lumen mean?
Obliterated central lumen is a condition that develops in plants when the xylem is heavily lignified and the wall becomes... View Article
Latest Posts
What is the storehouse of the cell why is it called?
Vacuoles are the membrane bound structures or sacs. These are found in the cytoplasm of the cell. Vacuoles are called... View Article
What is the medicinal use of microorganisms?
The medicines which kill/stop the growth of disease causing organisms are known as antibiotics. Attenuated vaccines : These are prepared... View Article
Write the measure to prevent soil erosion?
Soil errosion is one type of pollution that affected to the soil which is happening due to the cause of... View Article
Two allelic genes are located on: a) Two homologous chromosomes, each having one gene b) Two non-homologous chromosomes c) Any two chromosome with one each d) Same chromosome
An allele is a two form of a gene which carries the contrasting characters. Two allelic genes are located on... View Article
Write the full form of IBA, NAA and 2-4-D.
A number of other chemical compounds have been synthesized which exhibit auxin activity. They are called synthetic auxins. IBA is... View Article
Cuscuta is an example of A. Autottoph B. Parasite C. Saprotroph D. Host
Cuscuta is an example of option B. Parasite Explanation A parasite is an organism that survives in or on another... View Article
What are saprophytes? Give two examples
Saprophytes are the living organisms that live and feed on dead and decaying organisms. They are considered extremely important in... View Article
Which is not a natural ecosystem? (a) Desert (b) Aquarium (c) Forest
Aquarium is not a natural ecosystem Explanation A natural ecosystem is a community of living and non-living entities and occurs... View Article
What is referred to as a thin slice of cork?
Robert Hooke in 1665 observed a thin slice of cork through a microscope and coined the team cell. Thin slices... View Article
What are jointed appendages?
A jointed appendage can be defined as the growth from the body of organism having joints in it. Jointed appendages... View Article
Explain the process of breathing in human beings
The process in which air moves in and out of the lungs is known as breathing. Process of breathing The... View Article
Which structures perform the function of mitochondria in bacteria? (a) Nucleoid (b) Ribosomes (c) Cell wall (d) Mesosomes
Which structures perform the function of mitochondria in bacteria? Answer Option (d) Mesosomoes A special structure known as mesosome is... View Article
What is the ploidy of embryo sac?
The ploidy of embryo sac is Haploid.The number of set of chromosomes is called as Ploidy. Explanation An embryo sac... View Article
Write a short note on biodiversity conservation
Biodiversity conservation refers to the protection, upliftment, and management of biodiversity in order to derive sustainable benefits for present and... View Article
Filiform apparatus is found in which part of angiosperms A) Sperm B) Antipodal C) Egg D) Synergid
Filiform apparatus is found in option d) Synergid Explanation Synergid cells are two small, specialized cells found in the embryo... View Article
What is the shape of stomata?
Stomata are the tiny openings present on the epidermis of leaves. Stomata play an important role in gaseous exchange and... View Article
Anthropogenic action hastens evolution. Explain
Anthropogenic actions refer to the activities that are caused by human beings. Anthropogenic action also referred to as human activities... View Article
What are the green patches that we see in stagnant water?
Green patches seen in stagnant water are algae. Algae are the simplest forms of eukaryotic organisms. With plenty of sunlight... View Article
An amoeba ingests food by A) cilia B) tentacles C) pseudopodia D) feeding tube
An amoeba ingests food by Option c) pseudopodia Explanation Nutrition in an Amoeba occurs through a process called phagocytosis where... View Article
