Migration in fishes/class11 biology
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Migration in fishes generally refers to the periodic movement of fish from one place to another for purposes such as food, shelter, breeding, or protection. There are several types of migration including diadromous migration where fish move between freshwater and seawater for breeding, potamodromous migration within freshwater systems, and oceanodromous migration confined to ocean waters for food. Some key advantages of migration for fish are that it allows them to find safe shelter, ample food sources, better conditions for reproduction, and helps them to adapt to new environments while avoiding competition.
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Migration in fishes
This document discusses different types of fish migration. It describes potamodromous migration within freshwater systems, oceanodromous migration within marine systems, and diadromous migration between freshwater and marine systems. Diadromous migration includes catadromous migration patterns like eels that live in freshwater but spawn in the ocean, and anadromous patterns like salmon that live in the ocean but spawn in freshwater rivers and streams. The document provides details on the life cycles and migration routes of eels and salmon.
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Migration in fishes
This document summarizes the different types of fish migration. There are five main categories of fish migration based on their relationship to freshwater and seawater boundaries: diadromous, anadromous, catadromous, oceanodromous, and potadromous. Diadromous fish migrate between freshwater and seawater, anadromous fish migrate from seawater to freshwater to spawn, catadromous fish do the opposite by migrating from freshwater to seawater to spawn, oceanodromous fish migrate within seawater, and potadromous fish migrate entirely within freshwater. Fish migrate for reasons like finding sufficient food sources, favorable spawning conditions
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Fish migration occurs for feeding, spawning, or to escape environmental extremes. There are several types of migration based on habitat, including potamodromous (between freshwater habitats), oceanodromous (within marine habitats), and diadromous (between freshwater and marine habitats). Diadromous migration includes catadromous (from freshwater to marine) and anadromous (from marine to freshwater) patterns. Vertical migration also occurs as fish move up and down the water column daily or seasonally for reasons such as feeding, predator avoidance, and environmental conditions. Understanding fish migratory behavior is important for fisheries management.
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This document summarizes the characteristics of the Solanaceae family of plants. It describes that the family includes over 2,200 species distributed mainly in tropical and temperate regions. Most members are herbs, shrubs, or trees that have alternate leaves, cymose inflorescences, and berries or capsules as fruits. Economically important plants in this family include potatoes, tomatoes, chilies, tobacco, and belladonna, which is used to extract atropine.
Description of family fabaceae
This document summarizes the key characteristics of plants in the Fabaceae family, also known as legumes. It describes their distribution in temperate and subtropical regions. Most are annual or perennial herbs, shrubs, or trees with branched taproots containing nitrogen-fixing nodules. Their leaves are alternately arranged and compound, stems are branched, and flowers are usually racemose with five fused sepals and five fused petals. Economically, they are important as vegetables, pulses, and for their ability to fix nitrogen in soil.
Development of embryo/class12 biology
The document summarizes the development of dicot and monocot embryos. It begins by defining embryogenesis as the process after fertilization that produces a fully developed plant embryo. It then describes the development of dicot embryos, starting with the zygote dividing into two cells, one forming the suspensor and one the embryo proper. The embryo cell divides further to form the octant stage with eight cells that develop into various embryo parts. For monocot embryos, the zygote also divides into two cells but the basal cell does not divide further and forms the suspensor directly while the embryo cell divides to form the plumule, hypocotyl, and radicle.
Pollination/class 12 biology
This document discusses different types of pollination in plants. It describes self-pollination, which can occur through autogamy within a flower or geitonogamy between different flowers of the same plant. Cross-pollination involves the transfer of pollen between different plants and can be facilitated by biotic agents like insects, birds, or abiotic factors like wind and water. The document provides examples of different pollination types and notes advantages and disadvantages of self-pollination versus cross-pollination.
Floral formula and floral diagram
the floral formula tells us about the nature of flowers. the floral diagram represents the plan of arrangements of floral whorl in relation to the mother axis.
Animal behavior/ orientation/taxes
this ppt slide consists of the definition of orientation, types of taxis. these slides help students to understand taxis' behavior in an easy way.
Schon's models of curriculum dissemination
Schon identified three models of curriculum dissemination:
1. The center-periphery model involves dissemination controlled from a central source spreading outward.
2. The proliferation of centres model establishes primary and secondary centers that both support and expand dissemination.
3. The shifting- centres method emerges from social movements and lacks clearly established secondary centers, instead dissemination responds to local demands.
Analysis of new curriculum of class 11 biology/
The document analyzes and compares the new and old class 11 biology curriculum in Nepal. The new curriculum was revised based on research and suggestions to include more practical and application-based learning. It divides content into competencies, theory, and practical sections for both botany and zoology. While course content remained similar, the new curriculum reorganized some topics, increased practical hours, emphasized projects and field work, and implemented a blended assessment approach including internal and external evaluations. The goal of the revisions was to make the curriculum more conceptual, practical, and skill-based compared to the previous knowledge-based theoretical model.
Linkage/class 12 biology
linkage ppt slide is made for those learners which are a very weak understanding of the linkage concept. so it helps the students to take a clear concept from it.
Logical inference and inquiry
Logical inference and inquiry is a document about logic and logical reasoning. It discusses what logic is, including that it has two main parts - semantics and syntax. It also discusses logical inference as deriving conclusions from premises, and provides an example inference about dogs having four legs. The document outlines different rules of inference and their validity being based on form rather than truth. Finally, it discusses logical inquiry as any process aimed at increasing knowledge or solving problems, involving abductive, deductive and inductive reasoning.
Megasporogenesis/class 12 biology
it is about the megagametogenesis and development of female gametophytes. it is helpful for intermediate biology students.
Pteridophyta/ class 11 biology
This document describes the life cycle of ferns. It explains that ferns reproduce asexually through spores and sexually through gametophytes. The spores grow into heart-shaped prothalli that produce male antheridia and female archegonia for fertilization. Fertilization results in a diploid zygote that develops into a new fern sporophyte, completing the alternation of generations.
Epistasis/class 12 biology
it is about the genetic interaction, epistatic mechanism of dominant and recessive takes place in animal and plants
Environmental pollution/intermediate/campus level
this slide for biology students and helpful for intermediate and bachelor level students. students can learn about air pollution very easily. it gives a detailed description of air pollutants, their causes, and preventive measures with a clear photograph.
Chromosomal mutation/class 12 biology
this slide is about mutation especially on gene and chromosomal mutation for intermediate students. students can take benefit from it
Vegetative reproduction in angiosperm
Vegetative reproduction is a form of asexual reproduction in plants where new individuals are formed from vegetative organs like roots, stems, and leaves. There are two types of vegetative reproduction - natural, which occurs through modified roots, stems, and leaves; and artificial, where humans interfere to propagate plants through methods like layering, grafting, and tissue culture. Vegetative reproduction allows for the large scale, rapid production of identical new plants that inherit the parent's characteristics.
Sexual reproduction in angiosperm(microsporogenesis)
This document summarizes the process of microsporogenesis and microgametogenesis in angiosperms. Microsporogenesis involves the formation of microspores (pollen grains) from microspore mother cells within the anther through meiosis. The anther contains four layers surrounding the pollen sacs: epidermis, endothecium, middle layer, and tapetum. During microgametogenesis, the pollen grain germinates and its nucleus divides to form a vegetative cell and generative cell. The generative cell then divides into two sperm cells that are delivered to the female gametophyte via a pollen tube.
Animal behavior
- Animal behavior is the reaction and expression of organisms in response to external stimuli in their environment. This includes both innate, genetically determined behaviors as well as learned behaviors acquired through experience.
- Reflex actions are automatic, involuntary responses to stimuli that occur very quickly via neural pathways between receptors, the spinal cord, and effectors. An example is withdrawing one's hand from a hot object.
- The mechanism of a reflex involves stimulation of sensory receptors, conduction of impulses through sensory neurons to the spinal cord, modulation in the spinal cord, and transmission of impulses through motor neurons to effector organs to produce the reflex response.
More from Dambar Khatri (19)
Description of family solanaceae in semi technical term/class11 bilogy
Description of family solanaceae in semi technical term/class11 bilogy
Sexual reproduction in angiosperm(microsporogenesis)
Sexual reproduction in angiosperm(microsporogenesis)
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Travis Hills of Minnesota developed a method to convert waste into high-value dry fertilizer, significantly enriching soil quality. By providing farmers with a valuable resource derived from waste, Travis Hills helps enhance farm profitability while promoting environmental stewardship. Travis Hills' sustainable practices lead to cost savings and increased revenue for farmers by improving resource efficiency and reducing waste.
原版制作(carleton毕业证书)卡尔顿大学毕业证硕士文凭原版一模一样
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Deep Behavioral Phenotyping in Systems Neuroscience for Functional Atlasing a...
Functional Magnetic Resonance Imaging (fMRI) provides means to characterize brain activations in response to behavior. However, cognitive neuroscience has been limited to group-level effects referring to the performance of specific tasks. To obtain the functional profile of elementary cognitive mechanisms, the combination of brain responses to many tasks is required. Yet, to date, both structural atlases and parcellation-based activations do not fully account for cognitive function and still present several limitations. Further, they do not adapt overall to individual characteristics. In this talk, I will give an account of deep-behavioral phenotyping strategies, namely data-driven methods in large task-fMRI datasets, to optimize functional brain-data collection and improve inference of effects-of-interest related to mental processes. Key to this approach is the employment of fast multi-functional paradigms rich on features that can be well parametrized and, consequently, facilitate the creation of psycho-physiological constructs to be modelled with imaging data. Particular emphasis will be given to music stimuli when studying high-order cognitive mechanisms, due to their ecological nature and quality to enable complex behavior compounded by discrete entities. I will also discuss how deep-behavioral phenotyping and individualized models applied to neuroimaging data can better account for the subject-specific organization of domain-general cognitive systems in the human brain. Finally, the accumulation of functional brain signatures brings the possibility to clarify relationships among tasks and create a univocal link between brain systems and mental functions through: (1) the development of ontologies proposing an organization of cognitive processes; and (2) brain-network taxonomies describing functional specialization. To this end, tools to improve commensurability in cognitive science are necessary, such as public repositories, ontology-based platforms and automated meta-analysis tools. I will thus discuss some brain-atlasing resources currently under development, and their applicability in cognitive as well as clinical neuroscience.
Thornton ESPP slides UK WW Network 4_6_24.pdf
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The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptx
Although Artemia has been known to man for centuries, its use as a food for the culture of larval organisms apparently began only in the 1930s, when several investigators found that it made an excellent food for newly hatched fish larvae (Litvinenko et al., 2023). As aquaculture developed in the 1960s and ‘70s, the use of Artemia also became more widespread, due both to its convenience and to its nutritional value for larval organisms (Arenas-Pardo et al., 2024). The fact that Artemia dormant cysts can be stored for long periods in cans, and then used as an off-the-shelf food requiring only 24 h of incubation makes them the most convenient, least labor-intensive, live food available for aquaculture (Sorgeloos & Roubach, 2021). The nutritional value of Artemia, especially for marine organisms, is not constant, but varies both geographically and temporally. During the last decade, however, both the causes of Artemia nutritional variability and methods to improve poorquality Artemia have been identified (Loufi et al., 2024).
Brine shrimp (Artemia spp.) are used in marine aquaculture worldwide. Annually, more than 2,000 metric tons of dry cysts are used for cultivation of fish, crustacean, and shellfish larva. Brine shrimp are important to aquaculture because newly hatched brine shrimp nauplii (larvae) provide a food source for many fish fry (Mozanzadeh et al., 2021). Culture and harvesting of brine shrimp eggs represents another aspect of the aquaculture industry. Nauplii and metanauplii of Artemia, commonly known as brine shrimp, play a crucial role in aquaculture due to their nutritional value and suitability as live feed for many aquatic species, particularly in larval stages (Sorgeloos & Roubach, 2021).
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...
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Slides from talk:
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11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Inter-Society Networking Panel GRSS/MTT-S/CIS Panel Session: Promoting Connection and Cooperation
https://www.etran.rs/2024/en/home-english/bordetella pertussis.................................ppt
Bordettela is a gram negative cocobacilli spread by air born drop let
The debris of the ‘last major merger’ is dynamically young
The Milky Way’s (MW) inner stellar halo contains an [Fe/H]-rich component with highly eccentric orbits, often referred to as the
‘last major merger.’ Hypotheses for the origin of this component include Gaia-Sausage/Enceladus (GSE), where the progenitor
collided with the MW proto-disc 8–11 Gyr ago, and the Virgo Radial Merger (VRM), where the progenitor collided with the
MW disc within the last 3 Gyr. These two scenarios make different predictions about observable structure in local phase space,
because the morphology of debris depends on how long it has had to phase mix. The recently identified phase-space folds in Gaia
DR3 have positive caustic velocities, making them fundamentally different than the phase-mixed chevrons found in simulations
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We also compare the observed phase-space distribution to FIRE-2 Latte simulations of GSE-like mergers, using a quantitative
measurement of phase mixing (2D causticality). The observed local phase-space distribution best matches the simulated data
1–2 Gyr after collision, and certainly not later than 3 Gyr. This is further evidence that the progenitor of the ‘last major merger’
did not collide with the MW proto-disc at early times, as is thought for the GSE, but instead collided with the MW disc within
the last few Gyr, consistent with the body of work surrounding the VRM.
Applied Science: Thermodynamics, Laws & Methodology.pdf
When I was asked to give a companion lecture in support of ‘The Philosophy of Science’ (https://shorturl.at/4pUXz) I decided not to walk through the detail of the many methodologies in order of use. Instead, I chose to employ a long standing, and ongoing, scientific development as an exemplar. And so, I chose the ever evolving story of Thermodynamics as a scientific investigation at its best.
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Deep Software Variability and Frictionless Reproducibility
Deep Software Variability and Frictionless ReproducibilityUniversity of Rennes, INSA Rennes, Inria/IRISA, CNRS
The ability to recreate computational results with minimal effort and actionable metrics provides a solid foundation for scientific research and software development. When people can replicate an analysis at the touch of a button using open-source software, open data, and methods to assess and compare proposals, it significantly eases verification of results, engagement with a diverse range of contributors, and progress. However, we have yet to fully achieve this; there are still many sociotechnical frictions.
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I will then present some software engineering and AI techniques that can support the strategic exploration of variability spaces. These include the use of abstractions and models (e.g., feature models), sampling strategies (e.g., uniform, random), cost-effective measurements (e.g., incremental build of software configurations), and dimensionality reduction methods (e.g., transfer learning, feature selection, software debloating).
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Exposé invité Journées Nationales du GDR GPL 2024
Micronuclei test.M.sc.zoology.fisheries.
Current Ms word generated power point presentation covers major details about the micronuclei test. It's significance and assays to conduct it. It is used to detect the micronuclei formation inside the cells of nearly every multicellular organism. It's formation takes place during chromosomal sepration at metaphase.
THEMATIC APPERCEPTION TEST(TAT) cognitive abilities, creativity, and critic...
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hematic appreciation test is a psychological assessment tool used to measure an individual's appreciation and understanding of specific themes or topics. This test helps to evaluate an individual's ability to connect different ideas and concepts within a given theme, as well as their overall comprehension and interpretation skills. The results of the test can provide valuable insights into an individual's cognitive abilities, creativity, and critical thinking skillsEquivariant neural networks and representation theory
Or: Beyond linear.
Abstract: Equivariant neural networks are neural networks that incorporate symmetries. The nonlinear activation functions in these networks result in interesting nonlinear equivariant maps between simple representations, and motivate the key player of this talk: piecewise linear representation theory.
Disclaimer: No one is perfect, so please mind that there might be mistakes and typos.
dtubbenhauer@gmail.com
Corrected slides: dtubbenhauer.com/talks.html
BREEDING METHODS FOR DISEASE RESISTANCE.pptx
Plant breeding for disease resistance is a strategy to reduce crop losses caused by disease. Plants have an innate immune system that allows them to recognize pathogens and provide resistance. However, breeding for long-lasting resistance often involves combining multiple resistance genes
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mô tả các thí nghiệm về đánh giá tác động dòng khí hóa sau đốt
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Migration in fishes/class11 biology
- 1. Migration in fishes Dambar Singh Khatri
- 2. What is migration? • The migration generally refers to the periodic passing of animal form one place for different purpose. • The movement of fishes from one place to another place for food, shelter, breeding, or protection is called migratory behavior of fishes. • Migration in fishes takes place mainly for reproduction and feeding.
- 3. Types of mIgration • Diadromous Migration (breeding purpose): These are truly migratory fish which migrate from fresh water to sea water and from sea to fresh water. • Catadromous migration: The migration of fishes from fresh water to seawater is called catadromous migration. This migration is especially for breeding purpose. During breeding season they move from fresh water to marine water, e.g. Anguila bengalensis. • Anadromous migration: The migration of fishes from seawater to fresh water especially for breeding purpose is called anadromous migration. They live their whole life in see water and they migrate only for reproduction, e.g. Salmon.
- 4. Diadromous migratory fishes Angilla bengalensis Onchorynchus mykiss Salmon fish Salmon fish migrating from sea water to fresh water
- 5. • Potamodromous: The migration of fish towards fresh water, e.g. Carps. • Oceanodromous migration: it is confined in ocean for food, e.g. Clupea. • Latitudinal Migration: The migration from south to north and vise-versa, e.g. Swordfish • Vertical migration: Migration from surface to the depths for food. Tor, a potamodromus fis Atlantic herring, a ocenodromus fish Sword fish, latitudinal migrating fish
- 6. Advantages of migration • Due to migration fish could get safe shelter and enough food. • Migration can ensure better condition for reproduction. • Fish gets better adapting in new places. • There will be wide distribution. • Less competition.