With several options to study and build a career in science, either in BiPC subjects [Biology, Physics, Chemistry], MPC subjects [Maths, Physics, and Chemistry], or the ultra-intelligent PCMB subjects [ Physics. Chemistry, Biology, Mathematics] the Science stream has been one of the most popular choices amongst scores of students.

खगोल-जीवविज्ञान (Astrobiology) (also known as exobiology, exopaleontology, and bioastronomy) – the study of evolution, distribution, and future of life in the universe. जीवरसायन (Biochemistry) – the study of the chemical reactions required for life to exist and function, usually a focus on the.

E. Coli. Discovered in 1885, E. coli is a gram-negative bacillus normally found in the lower intestines of both human beings and animals. Although E. coli is part of the normal flora in the lower intestine, there are various strains of the bacteria that are responsible for a number of gastrointestinal illnesses.

The nucleus (plural, nuclei) houses the cell’s genetic material, or DNA, and is also the site of synthesis for ribosomes, the cellular machines that assemble proteins. Inside the nucleus, chromatin (DNA wrapped around proteins, described further below) is stored in a gel-like substance called nucleoplasm.

nucleolus, plural nucleoli, spherical body within the nucleus of most eukaryotic cells, involved in the synthesis of ribosomal RNA (rRNA) and the formation of ribosomes. Nucleoli appear shortly after mitosis and form around specific repeating chromosome regions, known as nucleolar organizing regions, within the nucleus. A single nucleus can house one to several nucleoli, depending on the.

anatomy: [noun] a branch of morphology that deals with the structure of organisms.

Key Points Eupnea is normal quiet breathing that requires contraction of the diaphragm and external intercostal muscles. Diaphragmatic breathing requires contraction of the diaphragm and is also called deep breathing. Costal breathing requires contraction of the intercostal muscles and is also called shallow breathing.

This is the meaning of untangle: untangle (English) Origin & history From un-+ tangle Pronunciation. Rhymes: -æŋɡəl; Verb untangle (third-person singular simple present untangles, present participle untangling, simple past and past participle untangled) To remove tangles or knots. With gentle combing, untangle your hair.

Ecosystem Definition. An ecosystem is a system consisting of biotic and abiotic components that function together as a unit. The biotic components include all the living things whereas the abiotic components are the non-living things. Thus, an ecosystem science definition entails an ecological community consisting of different populations of.

PDF download available for NCERT Biology books class 12. NCERT Books for Class 12 Biology Full Book PDF Download PDF Download official prescribed Biology Class 12 NCERT textbook below. Book based on Latest Biology Class 12 NCERT CBSE Syllabus as on official website cbse academic nic .

NCERT Book for Class 11 Biology: Download revised NCERT Book for Class 11 Biology in a chapter-wise PDF. Also, check the list of chapter-wise topics removed from the textbook. The latest NCERT.

Biology as a field of study was named in the 19th century and arose from the studies of medicine and natural history, both of which date back to ancient times. The term ‘biology’ comes from the Greek words bios (life) and logos (word or discourse). Biology asks questions about all living things, including plants, animals and micro-organisms.