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Ecosystem Quiz set 1
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Digestion and Absorption Quiz Set 1
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MENDELS LAWS OF INHERITANCE
The first scientific study leading to formulation of laws of inheritance was carried out by Gregor Johann Mendel. Mendel conducted cross-hybridization experiments on garden Pea plant (Pisum sativum) and studied the transmission of characters. Mendel selected garden pea as experimental material because It is easy to cultivate. Pea plant had several true-breeding lines. The plant…
Mendelian inheritance Quiz
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Cell Cycle and Cell Division worksheet
A cell cycle is a series of events that takes place in a cell as it grows and divides. A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division. Loading…
Asexual reproduction in plant Quiz
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Phylum Protozoa
Protos—first, Zoan—animal, First animal phylum Study of protozoans called Protozoology Father of protozoology – Antony von Leeuwenhoek Term Protozoa was assigned by Goldfuss Protozoa belong to Kingdom Protista of Haeckel Single-celled, solitary or colonial, eukaryotes Important characters Size ranges from 1µ to 5000µ Aquatic – freshwater or marine forms, or endoparasites Grade of organization– protoplasmic…
Animal Kingdom
Animal Kingdom covers about 35-phyla, of which 11 are considered to be major phyla. In major phyla, 10 are from Non-chordates and 1 from chordates. The 11-major phyla are – Phylum Protozoa: single-celled (solitary or colonial)Eukaryotes Phylum Porifera: Sponges Phylum Cnidaria: Jellyfishes and sea anemones Phylum Ctenophora*: Comb jellies Phylum Platyhelminthes: Flat warms Phylum Aschelminthes:…
EXCRETORY SYSTEM IN HUMAN
Except for urinary bladder which is endodermal in origin, the whole excretory system is Except urinary bladder which is endodermal in origin, the whole excretory system is Except mesodermal. In human the kidney is retroperitoneal i.e., the kidney is located outside the coelomic cavity and is covered by peritoneum (coelomic epithelium) from the ventral side…
Urine Formation
3−steps are involved in the formation of urine A) Ultra filtration It is filtration under pressure. Glomerular capillary pressure (45 mm of Hg) favours filtration. The Colloidal osmotic pressure (due to plasma proteins, particularly albumin) acts against filteration. Its value is ~20 mm of Hg. The Capsular filtrate pressure, due to the glomerular filtrate in…
An overview of Pituitary Gland
It is called master gland (master of endocrine orchestra) as it regulates the functioning of other endocrine glands like thyroid, Adrenal cortex, testes and ovaries etc. However, the secretions of pancreas, thymus and pineal body are not regulated by the hormones of the pituitary. Pituitary is a single or unpaired gland weighing about 0.5 gm.…
FIVE KINGDOM SYSTEM
In this lesson, we discussing five kingdom classification. Five kingdom classification is proposed by R.H.Whittaker in 1969. the kingdom defined by him were named Monera, Protista, Fungi, Plantae, and Animalia. In this lesson, we show a brief introduction to these kingdoms for more information on kingdom please visit a particular lesson on that kingdom. Main Criteria…
