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New videos from Khan Academy 2019-11-15T07:50:10.325069
Mis à jour : il y a 22 min 35 sec

Vegetative propagation (& advantages)

ven, 2019-11-15 07:50
Let's explore vegetative propagation with examples & advantages.

Puberty & physical changes

ven, 2019-11-15 07:50
Let's explore the physical changes in humans at puberty.

Why reproduction (Intro)

ven, 2019-11-15 07:50
Let's explore why most living things reproduce

Fertilisation, zygote, embryo, germination

ven, 2019-11-15 07:50
Let's explore how fertilisation takes place in flowers.

Variation & it's importance

ven, 2019-11-15 07:50
Let's explore what variation is and it's need

Reproduction, DNA, sexual & asexual

ven, 2019-11-15 07:50
Let's explore reproduction at cellular level.

Germ cells, gametes & sexual reproduction

ven, 2019-11-15 07:50
Let's see how the DNA number is maintained in sexual reproduction.

Fission (binary & multiple) with examples

ven, 2019-11-15 07:50
Let's explore binary & multiple fission with examples.

Budding, fragmentation, regeneration & spores

ven, 2019-11-15 07:50
Hydra, yeast, spirogyra, planaria, starfish, rhizopus reproduction.

Flower sexual parts (unisexual & bisexual)

ven, 2019-11-15 07:50
Let's explore the unisexual and bisexual flowers

Flower: Parts of stamen, carpel

ven, 2019-11-15 07:50
Let's learn the parts of stamen and carpel and see how to remember them.

Placenta | How do organisms reproduce

ven, 2019-11-15 07:50
Let's learn how placenta helps in nourishing the fetus

Male reproductive system (humans)

ven, 2019-11-15 07:50
Let's explore the male reproductive system in humans

Pollination (self & cross)

ven, 2019-11-15 07:50
Let's explore pollination, its types and agents.

Female reproductive sys, menstruation & fertilisation

ven, 2019-11-15 07:50
Let's explore the female reproductive system in humans

Contraceptives (mechanical barriers, hormonal, surgical)

ven, 2019-11-15 07:50
Let's explore what contraceptives are & the different types.

Why sexual reproduction (Faster variation)

ven, 2019-11-15 07:50
Let's explore how sexual reproduction speeds up variations

Cryptography: The RSA algorithm

lun, 2019-11-04 05:12
By Branko Malaver-Vojvodic. Country: Peru. Finalist and Popular Vote Top Scorer: 2019 Breakthrough Junior Challenge

Gravitational waves

lun, 2019-11-04 04:36
By Brooklyn Clark. Country: USA, Finalist: 2019 Breakthrough Junior Challenge

Boltzmann's entropy and arrow of time

lun, 2019-11-04 04:36
By Aditya Joshi. Country: India. Finalist, India Region Champion: 2019 Breakthrough Junior Challenge

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