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In the Class 7 textbook topic titled “Our Pasts-2”, pages 48 and 49 have been excluded. These pages mentioned “Mughal Emperors: Major campaigns and events.” The deletions also affected Biology and Chemistry textbooks as the theory of evolution and the periodic table were also purged from class 10 NCERT textbooks. [35] [36]
Due to differences between larvae of acorn worms and that of Planctosphaera pelagica, Planctosphaera is sometimes given its own class. Xenacoelomorpha : are they deuterostomes , forming a clade Xenambulacraria together with echinoderms and hemichordates , or rather primitive bilaterians and a sister group to Nephrozoa ?
Fidgeting is considered a nervous habit, though it does have some underlying benefits. People who fidget regularly tend to weigh less than people who do not fidget because they burn more calories than those who remain still. The energy expenditure associated with fidgeting is called non-exercise activity thermogenesis (NEAT). [15]
Circular dendrogram of feeding behaviours A mosquito drinking blood (hematophagy) from a human (note the droplet of plasma being expelled as a waste) A rosy boa eating a mouse whole A red kangaroo eating grass The robberfly is an insectivore, shown here having grabbed a leaf beetle An American robin eating a worm Hummingbirds primarily drink nectar A krill filter feeding A Myrmicaria brunnea ...
Biology is the study of life and its processes. Biologists study all aspects of living things, including all of the many life forms on earth and the processes in them that enable life. These basic processes include the harnessing of energy, the synthesis and duplication of the materials that make up the body, the reproduction of the organism ...
An example of direct competition. Intraspecific competition is an interaction in population ecology , whereby members of the same species compete for limited resources. This leads to a reduction in fitness for both individuals, but the more fit individual survives and is able to reproduce. [ 1 ]
Molecular biology – study of biology and biological functions at the molecular level, with some cross over from biochemistry. Structural biology – a branch of molecular biology, biochemistry, and biophysics concerned with the molecular structure of biological macromolecules. Health sciences and human biology – biology of humans.
The black walnut secretes a chemical from its roots that harms neighboring plants, an example of competitive antagonism.. In ecology, a biological interaction is the effect that a pair of organisms living together in a community have on each other.