Reproduction allows organisms to produce new individuals of the same species in order to ensure species survival. During reproduction, DNA is copied and passed from parents to offspring, resulting in slight variations between offspring that are important for species evolution and survival amid environmental changes. There are two main types of reproduction: asexual, where new individuals arise from a single parent through processes like budding and fission, and sexual, which involves two parents fusing male and female reproductive cells. In humans, sexual reproduction occurs through internal fertilization, where sperm from the male fertilizes an egg from the female inside her reproductive system, leading to embryo development and birth after nine months of pregnancy.
This Presentation is especially for the grade 10 as it is informaive and can be used for the CBSE syllabus of india ( of course ). hope this helps you alot and if any problems please let me know from the comments section below.................peace out......... and message me at bavitharavi@hotmail.com. this is also the chpter 9 of the cbse gr 10 science book biology.
Chapter - 5, Periodic Classification of Elements, Science, Class 10Shivam Parmar
I have expertise in making educational and other PPTs. Email me for more PPTs at a very reasonable price that perfectly fits in your budget.
Email: parmarshivam105@gmail.com
Chapter-5, Periodic Classification of Elements, Science Class10
CLASSIFICATION
DOBEREINER’S TRIAD
LIMITATIONS
NEWLAND’S LAW OF OCTAVES
CHARACTERISTICS OF LAW OF OCTAVES
LIMITATIONS OF NEWLANDS LAW OF OCTAVES
MENDELEEV’S PERIODIC TABLE
PROPERTIES OF GROUPS STUDIED BY MENDELEEV
LIMITATIONS OF MENDELEEV’S PERIODIC TABLE
MERITS OF MENDELEEV’S PERIODIC CLASSIFICATION
MODERN PERIODIC LAW
PROPERTIES OF MODERN PERIODIC TABLE
NOBLE GASES
POSITION OF ELEMENTS IN THE MODERN PERIODIC -TABLE
METALS
NON-METALS
METALLOIDS
TRENDS IN MODERN PERIODIC TABLE
Every topic of this chapter is well written concisely and visuals will help you in understanding and imagining the practicality of all the topics.
By Shivam Parmar (Entrepreneur & Teacher)
This Presentation is especially for the grade 10 as it is informaive and can be used for the CBSE syllabus of india ( of course ). hope this helps you alot and if any problems please let me know from the comments section below.................peace out......... and message me at bavitharavi@hotmail.com. this is also the chpter 9 of the cbse gr 10 science book biology.
Chapter - 5, Periodic Classification of Elements, Science, Class 10Shivam Parmar
I have expertise in making educational and other PPTs. Email me for more PPTs at a very reasonable price that perfectly fits in your budget.
Email: parmarshivam105@gmail.com
Chapter-5, Periodic Classification of Elements, Science Class10
CLASSIFICATION
DOBEREINER’S TRIAD
LIMITATIONS
NEWLAND’S LAW OF OCTAVES
CHARACTERISTICS OF LAW OF OCTAVES
LIMITATIONS OF NEWLANDS LAW OF OCTAVES
MENDELEEV’S PERIODIC TABLE
PROPERTIES OF GROUPS STUDIED BY MENDELEEV
LIMITATIONS OF MENDELEEV’S PERIODIC TABLE
MERITS OF MENDELEEV’S PERIODIC CLASSIFICATION
MODERN PERIODIC LAW
PROPERTIES OF MODERN PERIODIC TABLE
NOBLE GASES
POSITION OF ELEMENTS IN THE MODERN PERIODIC -TABLE
METALS
NON-METALS
METALLOIDS
TRENDS IN MODERN PERIODIC TABLE
Every topic of this chapter is well written concisely and visuals will help you in understanding and imagining the practicality of all the topics.
By Shivam Parmar (Entrepreneur & Teacher)
it is useful for classroom teaching , remedial classes. it consist of important questions and answers according to the board point of view, students it is very helpful for your examination
Reproduction In Living Beings Class - 10thNehaRohtagi1
PowerPoint Presentation on the topic - 'Reproduction In Living Beings'. For Class:- 10th
Created By - 'Neha Rohtagi'.
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Thank You!
Please give feedbacks and suggestions to get presentations on more interesting topics.
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A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Executive Directors Chat Leveraging AI for Diversity, Equity, and InclusionTechSoup
Let’s explore the intersection of technology and equity in the final session of our DEI series. Discover how AI tools, like ChatGPT, can be used to support and enhance your nonprofit's DEI initiatives. Participants will gain insights into practical AI applications and get tips for leveraging technology to advance their DEI goals.
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.
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Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
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Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
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Normal Labour/ Stages of Labour/ Mechanism of LabourWasim Ak
Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks
2. 1) Reproduction
Reproduction is the process by which living organisms
produce new individuals of the same species.
Reproduction is necessary for the survival and increase
in the population of a species. If organisms do not
reproduce, their population decreases and species will
become extinct.
2) Do organisms create carbon copies of
themselves ?
The DNA (Deoxyribo nucleic acid) molecules in the
chromosomes in the nucleus is responsible for the transfer
of characters from the parents to the off springs. During
reproduction the reproductive cells produce two copies of
the DNA which separate into two cells. The DNA copies will
be similar but not identical to each other. So the new
individuals have slight variations from their parents. This is
the basis for variations and evolution of new species.
3. 3) The importance of variation :-
DNA copying during reproduction is important for
maintaining the body designs of different organisms to
survive in the existing environment. But the environment is
constantly changing due to changes in temperature,
climate, water levels etc. If organisms cannot adjust
themselves to the changes in the environment then their
species will become extinct.
If there are variations in some individuals of a species
they may be able to survive the changes in the
environment.
So variations in species is necessary for the survival of
different species and for the evolution of new species.
4. 4) Types of reproduction
There are two main types of reproduction in living organisms. They
are asexual reproduction and sexual reproduction.
Asexual reproduction :- is reproduction in which new individuals
are produced from a single parent.
Sexual reproduction :- is reproduction in which two individuals are
involved to produce a new individual.
Asexual reproduction is of different types. They are:- fission,
budding, regeneration, fragmentation, spore formation, vegetative
propagation etc.
5. i) Fission
Fission is an asexual reproduction by which a unicellular
organism divides and forms two or more new individuals.
Fission is of two types. They are binary fission and multiple
fission.
i) Binary fission :- In this method an organism divides and
forms two individuals. First the nucleus divides and forms
two nuclei. Then the cytoplasm divides and forms two
daughter cells. Eg:- Amoeba, Paramaecium etc.
ii) Multiple fission :- In this method one organism divides
into many daughter cells. Eg.Plasmodium (Malarial parasite).
6. ii) Budding :-
bud
In this method a bud like projection is formed on the
body of the organism. The bud then develops into a new
individual. It then separates from the parent and forms an
independent individual. Eg:- Hydra, Yeast etc.
bud
7. iii)Regeneration:-
In this method a part of the body if the organism if cut or
broken can develop into a new individual. Eg :- Hydra,
Planaria, Star fish etc.
8. iv) Fragmentation :-
In this method the body of a simple multicellular
organism breaks up into smaller pieces on maturation and
each fragment develops into new individuals.
Eg :- Spirogyra.
9. In this method structures called sporangia produce tiny
cells called spores. When the spores come in contact with a
moist surface, it develops into new individuals.
Eg :- Rhizopus , Mucor, Penicillium etc.
v) Spore formation :-
10. vi) Vegetative propagation :-
In this method new plants are produced from the vegetative parts of
the plant like root, stem or leaf. Eg:- from roots – dhalia, sweet potato,
from stem – potato, ginger, from leaf – bryophyllum, begonia.
Plants produced by vegetative propagation produce flowers and
fruits earlier than those produced from seeds. It also helps in the
propagation of plants which do not produce seeds like rose, jasmine
banana etc.
Vegetative propagation can also be done artificially by cutting,
layering, grafting etc.
11. 5) Sexual reproduction in flowering plants
a) Reproductive parts of a flower :-
The stamen and pistil are the reproductive parts of the
flower. Stamen is the male reproductive part. It produces
pollen grains in the anther which contains the male germ
cell (male gamete). Pistil is the female reproductive part. It
produces ovules in the ovary which contain the female
germ cell (female gamete).
12. b) Pollination :-
The transfer of pollen grains from the anther to the stigma
of a flower is called pollination. It takes place by wind, water
or insects. If the pollen grains are transferred from the
anther to the stigma of the same flower it is self pollination
and if it is transferred from the anther of one flower to the
stigma of another flower it is cross pollination. Pollination
takes place by insects, wind, water etc.
Self pollination
Cross pollination
13. c) Fertilisation :-
After the pollen grain is
transferred to the stigma it
produces a pollen tube which
passes through the style and
enters the ovary and ovule. In
the ovule the male germ cell
(male gamete) fuses with the
female germ cell (female
gamete) to form a zygote. This
process is called fertilisation.
After fertilisation the zygote
divides several times and forms
the embryo which then develops
into the seed and the ovary
develops into the fruit.
14. 6) Reproduction in human beings
a) Male reproductive system :-
The male reproductive system consists of a pair of testes which
produces the male reproductive cells called sperms and the hormone
testosteron. It is contained in sac like structures called scrotum. From
each testis arises a tube called vas deferens. It joins into the urethra.
The urethra is enclosed in a muscular organ called penis. It has an
opening called genital pore. The seminal vesicles and prostate glands
produce fluids which provide nutrition and help in the movement of the
sperms.
15. b) Female reproductive system :-
The female reproductive system consists of a pair of ovaries which
produces the female reproductive cells called ova or eggs and the
hormone oestrogen. Above the ovaries are tubes called oviducts or
fallopian tubes. The two oviducts unite into a bag like structure called
uterus. The uterus has opening called vagina.
Human ovum (egg)
16. c) Fertilisation in human beings :-
During sexual intercourse the sperms from the male enters into the
vagina of the female. The sperms reaches the oviduct. One sperm fuses
with an egg and forms a zygote. The zygote then gets implanted in the
uterus. The zygote then starts dividing to form an embryo. The embryo
gets nutrition from the mother’s blood through the placenta. The
development of the child takes nine months and then the child is born.
17. d) Menstruation :-
The ovary produces one egg every month and the uterus
prepares to receive the fertilised egg. Its wall becomes
thick and spongy with blood vessels for nourishing the
embryo. If fertilisation does not take place then the uterus
wall breaks and comes out of the vagina as blood and
mucous. This cycle takes place once every month and is
called menstruation.
18. 7) Reproductive health :-
a) Sexually transmitted diseases :- are diseases
transmitted through sexual contact. They may be bacterial
infections like gonorrhoea and syphillis etc. or viral
infections like warts and HIV-AIDS.
b) Prevention of pregnancy ( Contraception ) :-
Pregnancy can be prevented by three main methods.
They are barrier methods chemical methods and surgical
methods.
i) Barrier methods consists of using condoms, diaphragm,
cervical caps, Copper T etc.
ii) Chemical methods consists of taking drugs like oral
pills, vaginal pills etc.
iii) Surgical methods consists of removing or tying a small
part of the vas deferens in males (Vasectomy).
or fallopian tube in female (Tubectomy).