Biology Most Important One Liner Question and Answer part- 12

Biology: Most Important One Liner Question and Answer part- 12 

 

  • In animals like Annelids, Mollusks, organs have associated to from functional systems, each system concerned with a specific physiological function. This pattern is called - organ system level of organization.
  • Circulatory System was discovered by - William Harvey.
  • The circulatory system is an organ system that permits - blood to circulate and transport nutrients, oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment.
  • A healthy adult man has, on an average – (5 – 5.5 million)of RBCs mm3 of
  • The female sex organ in a flower is - pistil.
  • Animals in which the cells are arranged in two embryonic layers are called - diploblastic.
  • Genus being a higher category is - the assemblage of families which exhibit a few similar characters.
  • Sexual reproduction in Algae that takes place through fusion of two dissimilar size gametes is called - anisogamous.
  • The animals in which the body cavity is absent are known as - Acoelomates.
  • Biological names are generally derived from - Latin language.
  • The members of rhodophyceae are commonly called - red algae.
  • Aurelia (Medusa) and Adamsia (Polyp) are examples of - Coelenterata Phylum.
  • A few organisms can tolerate and thrive in a wide range of temperatures. Such organisms are called - eurythermal.
  • Based on the common features like presence of notochord and dorsal hollow neural system, animal like fishes, amphibians, reptiles, birds along with mammals are included in - Chordata Phylum.
  • The members of phaeophyceae are commonly called - brown algae.
  • The Phaeophyceae or brown algaeare a large group of mostly marine multicellular algae, including many types of seaweed located in - colder Northern Hemisphere waters.
  • Asterias (Star fish), Echinus (Sea urchin), Antedon (Sea Lily) are all examples of - Echinodermata Phylum.
  • A few organisms can tolerate and thrive in a narrow range of temperatures. Such organisms are called - stenothermal.
  • Plasma is a straw colored, viscous fluid constituting nearly - 55 percent of the blood.
  • Sexual production in Algae that takes place through fusion of two similar size gametes is called -
  • Animals in which the cells are arranged in three embryonic layers are called - tripoblastic.
  • The ovaries are located one (1) on each side of - the lower abdomen in 
  • Through photosynthesis at least a half of the total carbon dioxide fixation on earth is carried out by - Algae.
  • Locust, Butterfly, Scorpion and Prawn are all examples of - Arthropoda Phylum.
  • Among plants, three different genera Solanum, Petunia and Daturaare placed in - Solanaceae family.
  • The members of chlorophyceae are commonly called - green algae.
  • The body cavity which is lined by mesoderm is called - coelom.
  • The uterus is single in - female.
  • Members of Chlorophyceae are called - green algae.
  • Members of Rhodophyceae are called - red algae.
  • Members of Phaeophyceae are called - brown algae.
  • Adamsia (Sea anemone), Pennatula (Sea-pen) are examples of - Coelenterata Phylum.
  • In each testis in a male reproductive system, there are 250 compartments called - testicular lobules.
  • The predominant stage of the life cycle of a moss is the gametophyte which consists of - two stages. The second stage is the leafy.
  • In Animal Kingdom classification, the Phylums are - Mollusca, Chordata and Annelida.
  • The ovariesare the primary female sex organs that produce - the female gamete (ovum) and several steroid hormones(ovarian hormones)
  • Bryophytes are also called - amphibians of the plant kingdom.
  • Bryophytes are an informal group consisting of three divisions of non-vascular land plants, the liverworts, hornworts and mosses
  • Bryophytes are characteristically limited in size and prefer moist habitats although they can survive - in drier environments.
  • Animals belonging to phylum chordataare fundamentally characterised by the presence of a notochord, a dorsal hollow nerve cord and paired - pharyngeal gill slits.
  • Adaptation is any attribute of the organism (morphological, physiological and behavioral) that enables the organism - to survive and reproduce in its habitat.
  • Classes comprising animals like fishes, amphibians, reptiles, birds along with mammals constitute the category called - Phylum.
  • The predominant stage of the life cycle of a moss is the gametophyte which consists of two stages. The first stage is the - protonema.
  • The largest phylum of Animalia which includes insects is - Arthropoda.
  • Insulin was discovered by - Frederick Banting.
  • Vitamin C is a - water soluble Vitamin.
  • There are four (4) chambers in - human heart.
  • Chloroplast, cell wall and vacuole are present – in matured stomata
  • plasmodesma is not present - in a matured stoma.
  • In case of hypermetropia - the focal length of the eye lens is too long.
  • Antibiotics are useful for - infections of bacteria.
  • Night blindness is caused by - deficiency of Vitamin A.
  • Air enters the body of cockroach through - spiracles.
  • Veins carry the blood - from all parts of body back to the heart.
  • Euglena, Amoeba and Paramecium are the example of - unicellular organism.
  • unicellular organism, also known as - a single-celled organism
  • Multicellular organism that consists of - more than one cell.
  • Iris controls - the size of pupil in human eye.
  • Dengue fever is generally caused by - viruses.
  • Dengue fever is a mosquito-borne tropical disease caused by - dengue virus.
  • Throat cancer, skin cancer and breathingproblem are caused by - smog.
  • Vitamin K helps - in clotting of blood.
  • During heavy exercise, breathing rate in an average adult person can increase up to - 25 per minute.
  • The colour of human blood is red because of - hemoglobin.
  • Oviparous animal does not give birth to - young ones.
  • Each sperm is - single cell.
  • External fertilisation takes place in - frog.
  • Fertilisation is necessary in sexual reproduction but not necessary in - asexual reproduction.
  • Excessive curvature of the eye lens is the cause of arise of -
  • Worms multiplies- very slowly in comparison to others.
  • Vitamin A is the most abundant Vitamin found in - carrot.
  • The rate of absorption of water through roots can be increased - by keeping the plants under the fan.
  • sporeproducing plant is - bread mould.
  • XY chromosome is responsible for - manliness in man.
  • The human eye forms the image of an object at its - retina.
  • Fungi, Spirogyra and Hydra are -multicellular organism
  • paramecium is - not a multicellular organism.
  • Specialization in single-celled organisms exists at- the subcellular level
  • The basic functions that are divided among the cells, tissues, and organs of the multicellular organism are collected within - one cell.
  • Rickets is caused by deficiency of - Vitamin D.
  • During exhalation, the ribs move - downwards.
  • On an average 5 – 5.5 million Red Blood Cellsare - present in a healthy human adult man per mm of blood.
  • tadpole develops into an adult frog by - metamorphosis process.
  • Light sensitive cell gets activated upon - illumination and generates electrical signal.
  • Brain and spinal cordconstitute - the central nervous system in human body.
  • Vitamin C is found in - lemon.
  • The blood clot formed is due to - presence of platelets.
  • Bryophyllum can be produced by - its leaves.
  • Sex of the baby depends on - father chromosomes.
  • The change in focal length of an eye lens is caused by the action of - ciliary muscle.
  • Fungi do not perform -
  • Monera are - unicellular.
  • Fungi have - cell wall.
  • Minamata and Itai–Itai diseases are caused by - metal toxicity
  • Dermatitis disease is not caused by - metal toxicity.
  • Beriberi disease is caused by deficiency of - Vitamin B.
  • During heavy exercise, we get cramps in the legs due to the accumulation of - lactic acid.
  • Carbon monoxide in Hemoglobin has - maximum affinity.
  • Iris controls the amount of - light entering the eye.
  • Common-cold, AIDS and dengue fever diseases are caused by – virus
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