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  • 1 answers

Gitu Kaji 5 years, 2 months ago

Genes control how our cell work by making protein and protein have specific function as massangers for the cell.All cancer begin when one or more cell mutate.It creats an abnormal protein or it may prevent protein functions.Abnormal protein gives different information than normal protein .Hence this can cause cell to multiply uncontrollably and become cancerous.
  • 4 answers

S P 5 years, 2 months ago

Unacademy YouTube channel pr rittu rattewal mam h

Sunidhi Chauhan 5 years, 2 months ago

I wiz you tube channel

Gautam Prajapati 5 years, 2 months ago

Ncert ka gyan.... Ye line to explain krte h...

Siddhartha Taneja 5 years, 2 months ago

Singh creation education
  • 0 answers
  • 1 answers

Yogita Ingle 5 years, 2 months ago

Reproductive health scientifically refers to a state, where one has a safe and satisfying *** life and has a healthy capability to reproduce. It might have to look through a life cycle approach involving both women and men that affect them from infancy to old age.
Reproductive health is the state of physical, mental and social well-being, and not just the absence of disease or weakness in all matters relating to the reproductive system. Reproductive health includes sexual health, the purpose of which is the enhancement of life and personal relations. And not merely counseling and care related to reproduction and sexually transmitted diseases.

  • 1 answers

V . 5 years, 2 months ago

Net pe search kar lo mil jaiga Fool
  • 1 answers

Meghna Thapar 5 years, 1 month ago

Reproductive health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity, in all matters relating to the reproductive system and to its functions and processes. Access to reproductive and sexual health services including family planning: Family planning counseling, pre-natal care, safe delivery and post-natal care, prevention and appropriate treatment of infertility, prevention of abortion and the management of the consequences of abortion, treatment of reproductive tract ...

  • 1 answers

Ashutosh Bind 5 years, 2 months ago

Chromosomes are made up of genes and genes are made up of base pair(adenin,guanin ,cytocin,thimine or adenin ,guanin,cytocin, uracin)that helps in evolution.
  • 1 answers

V . 5 years, 2 months ago

5 chapters ko chod kar baki sare karne H
  • 1 answers

Ashutosh Bind 5 years, 2 months ago

Impossible.But you wants to know.The progeny will be abnormal.
  • 1 answers

Gitu Kaji 5 years, 2 months ago

Epididymis is longed and coiled tube that transport sperm from rete testis to vasa deference.The epididymis consist three parts caput ( head ) ,cauda ( tail ) and corpus ( body ) part . In Corpus region sperm begin to gain motility
  • 1 answers

Meghna Thapar 5 years, 1 month ago

A type of virus that uses RNA as its genetic material. After infecting a cell, a retrovirus uses an enzyme called reverse transcriptase to convert its RNA into DNA. The retrovirus then integrates its viral DNA into the DNA of the host cell, which allows the retrovirus to replicate. After a retrovirus enters a host cell, reverse transcriptase converts the retroviral RNA genome into double-stranded DNA. This viral DNA then migrates to the nucleus and becomes integrated into the host genome. Viral genes are transcribed and translated.

  • 2 answers

Devil ? 5 years, 2 months ago

Rare blood group found in a female in bombay ...

Arshi Khan 5 years, 2 months ago

The Bombay blood group, is a rare type blood. The blood is phenotypes was first discovered is Bombay and known as Mumbai .
  • 1 answers

Yogita Ingle 5 years, 2 months ago

Oviduct (fallopian tube)-

  • 10-12 cm in length.
  • Extends from the periphery of each ovary to the uterus.
  • Part closer to the ovary is the funnel shaped
  • Fimbriae are the finger like projections located on the edges of the infundibulum.
  • Fimbriae help in collection of the ovum after ovulation.
  • The infundibulum leads to the ampulla which is the wider part of the oviduct.
  • The last part of the oviduct is isthmus which has a narrow lumen and it joins the uterus.
  • 1 answers

Sumit Pawar 5 years, 2 months ago

Ghuff
  • 1 answers

Gaurav Seth 5 years, 2 months ago

 

Main parts

Functions

Cornea

Light enters the eyes through cornea.

Iris

It controls the amount of light entering the eyes.

Pupil

It dilates and contracts and thus enables us to in bright and dark light.

Eye-lens

It is a convex lens and focuses the light entering the eyes.

Ciliary muscles

Holds the eye lens and helps it to change its focal length.

Retina

Part of the eyes where image is formed

Optic nerve

It helps to carry the signals from the retina to the brain.

  • 1 answers

Yogita Ingle 5 years, 2 months ago

MAMMARY GLANDS

  • Paired structures containing glandular tissues and fats, the amount of fat varies from person to person.
  • The glandular tissue of each breast is divided into 15-20 mammary lobes containing clusters of cells called
  • The cells of alveoli secrete milk, which is storedin the cavities called as lumens of alveoli.
  • The alveoli open into mammary tubules and the tubules of each lobe join to form a mammary duct which joins to form a wider mammary ampulla.
  • Mammary ampulla is connected to lactiferous duct through which milk is sucked out.
  • 1 answers

Meghna Thapar 5 years, 1 month ago

The cervix is the lower part of the uterus that opens into the ******. During childbirth, the cervix expands about 4 inches (10 centimeters) so the baby can travel from the uterus through the ****** and into the world. Placental insufficiency (also called placental dysfunction or uteroplacental vascular insufficiency) is an uncommon but serious complication of pregnancy. It occurs when the placenta does not develop properly, or is damaged. This blood flow disorder is marked by a reduction in the mother's blood supply.

  • 2 answers

My Life My Rules 5 years, 2 months ago

Condom Vasictomy Tubectomy

Meghna Thapar 5 years, 2 months ago

There are many different methods of birth control including condoms, IUDs, birth control pills, the rhythm method, vasectomy, and tubal ligation.

Birth Control Methods

  • IUD.
  • Contraceptive Implant.
  • Birth Control Shot.
  • Birth Control Pill.
  • Birth Control Patch.
  • Vaginal Ring.
  • Diaphragm and Cervical Cap.
  • Male Condom.
  • 2 answers

Devil ? 5 years, 2 months ago

That provide nutrition and development to growing pollen

Devil ? 5 years, 2 months ago

Binucleated cells of tapetum of pollen
  • 1 answers

Meghna Thapar 5 years, 1 month ago

The primary functions of the epididymis are sperm transport and sperm maturation. The epididymis serves this function across many mammalian species. As sperm travel through the epididymis they are exposed to a number of signals from the cells of the epididymis that drive their maturation. It transports and stores sperm cells that are produced in the testes. It also is the job of the epididymis to bring the sperm to maturity, since the sperm that emerge from the testes are immature and incapable of fertilization. During sexual arousal, contractions force the sperm into the vas deferens.

  • 2 answers

Devil ? 5 years, 2 months ago

It causes aerobic microbes to grow in no.

Yogita Ingle 5 years, 2 months ago

Aeration tank is meant for agitating the liquid effluent from the primary settiling tank where the air is aloowed to pass through agitating mixture to make it aerobic.

  • 2 answers

Shivam Pahariya 5 years, 2 months ago

Try krke dekho ekk baar

Piyush Mishra 5 years, 2 months ago

Try it once
  • 1 answers

V . 5 years, 2 months ago

Question to sahi se puch
  • 1 answers

Aditya Mishra 5 years, 2 months ago

Development of a dicot embryo (i) Embryo formation starts after a certain amount of endosperm is formed. (ii) Zygote divides by mitosis to form a proembryo. ... The embryonic stages during the development of a mature embryo sac are: (a) Fertilised embryo sac showing zygote and Primary Endosperm Nucleus (PEN).
  • 5 answers

Robin Khan 5 years, 2 months ago

Rajput mukender

Supriya Chaubey 5 years, 2 months ago

Dr. Vaani Sood Mam

Devil ? 5 years, 2 months ago

Vanni n goyal mam

Ayush Kumar 5 years, 2 months ago

Unacademy Neet by Dr. Sachin Kapur Sir.. He is superb teacher..

Aditya Mishra 5 years, 2 months ago

Unacacdemy Neet
  • 1 answers

Gaurav Seth 5 years, 2 months ago

The CBSE syllabus has been reduced but care has been taken so that the learning outcomes remain the same and the students do not miss out on learning core concepts in various subjects.

However, CBSE stated in its notification that though 30% of the syllabus has been cut from the new academic year, teachers should ensure that students understand these topics so that they can use the information in connection with other topics.

Deleted syllabus of CBSE Class 12 Biology

 

  • 3 answers

Piyush Mishra 5 years, 2 months ago

Seep mam

Nargis Ahmed 5 years, 2 months ago

Chup beth

Nur Narjina Ahmed 5 years, 2 months ago

Tera munu bahen
  • 3 answers

Nargis Ahmed 5 years, 2 months ago

Ok

Devil ? 5 years, 2 months ago

We not need .. if u want then ask ?

Nur Narjina Ahmed 5 years, 2 months ago

No we can't help you because ur exam was already bed
  • 2 answers

Devil ? 5 years, 2 months ago

If u are preparing for boards .. so this chap is not in syllabus

Yogita Ingle 5 years, 2 months ago

Fossils are the preserved remains of living organisms that existed on earth a long time ago. They are formed by the preservation of the remains of the organisms that existed in the earlier days. The dead bodies of the organisms are immediately covered by materials which do not allow decomposition at a fast rate. This preserves the dead bodies and forms them into fossils.

The existence of dinosaurs has come to be known only through fossils.

In addition to knowledge about the extinct forms, fossils also provide links between two groups indicating that perhaps one species evolved from the other. For example, a fossil called archaeopteryx show features of both reptiles (teeth) and birds (wings). Thus it shows some link between birds and reptiles. 

The oldest fossil-bearing rocks contain fossils of few organisms that were simple. However, the younger rocks contain more fossils and these fossils show more complex structure indicating that the complex organisms originated from simpler organisms.

Fossils show changes in lifeforms over time. Fossils give us snapshots of life on earth at various times. We can trace the movement from simple plants like fungi and ferns, to more complex flowering plants, trees, etc. The development of animals can be similarly traced, from a time when reptiles dominated to the rise of mammals.

One of the best examples of evolutionary record (phylogeny) is of the horse. Almost the complete fossil record was found in North America.

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