Biology Most Important One Liner Question and Answer part- 12
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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.
A 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.
A 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.
A 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