Bozeman Science
Behavior and Natural Selection
Paul Andersen explains how the behavior of various organisms is shaped by natural selection. The action of phototropism and the timing of photoperiodism have both been shaped by the relative availability of light. Courtship in the bower...
Bozeman Science
Mechanisms of Timing and Control
Paul Andersen explains how organisms regulate timing and control. Phototropism and Photoperiodism allow plants to respond to light throughout the day and year. Circadian rhythms are used in all organisms (including animals) as an...
SciShow
Weird Places Europe's Dancing, Crooked Forests
Hank takes you through the weird, twisted forests of Russia and Eastern Europe, where trees grow at odd angles. What caused trees to grow into big wooden pretzels? Was it wind? Manipulation by woodworkers? Nazis, maybe? See for yourself...
Curated Video
Tropism
When a plant grows in a particular direction in response to an external stimulus. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
Curated Video
Tropisms and Hormones
Discover the hormones that dictate whether a plant grows downwards with gravity, towards water and nutrients, or upwards towards light. Biology - Plants - Learning Points. Tropisms allow plants to seek out the best conditions for...
Curated Video
Life cycle of an oak tree
Do you know how many years an oak tree can live for? Life processes - Green plants - Plant growth Learning Points Following germination a taproot, grows from the seed. The first shoots from a seed move through the soil towards light. A...
Curated Video
Plant Hormones - Tropisms & Auxins #52
This video covers: - The idea that plants respond to their surroundings just like animals do - But that plants use local hormones rather than a nervous system - How auxins enable plants to respond to light (phototropism) and gravity...
Curated Video
Plant Movement: Tropisms, Nastic Movements, and Their Importance
Have you noticed that plants tend to grow in the direction of the sun? This redirection towards the sun a form of tropism, or plant movement. Learn about the common types of plant movement and their benefits!
FuseSchool
Uses of Plant Hormones
In this video we are going to look at a few different ways in which plant hormones can be used.
Plant growth hormones (auxins) can be used as selective weedkillers. The selective weedkillers contain growth hormones, that cause the...
Visual Learning Systems
Photosynthesis and Plant Responses: Plant Responses
Students will learn why photosynthesis is so important to us. The different plant structures and compounds involved in photosynthesis and transpiration are highlighted. Beyond photosynthesis, plant responses to certain stimuli and...
Getty Images
Volvox colony releasing daughter colony into surrounding watercomposed of hundreds of green algae cells each with 2 whip like flagellae and a red eye spot.
Volvox colony releasing daughter colony into surrounding watercomposed of hundreds of green algae cells each with 2 whip like flagellae and a red eye spot.
Getty Images
Volvox colony with daughter colonies; composed of hundreds of green algae cells each with 2 whip like flagellae and a red eye spot.
Volvox colony with daughter colonies; composed of hundreds of green algae cells each with 2 whip like flagellae and a red eye spot.
Getty Images
Volvox colony releasing daughter colony into surrounding watercomposed of hundreds of green algae cells each with 2 whip like flagellae and a red eye spot.
Volvox colony releasing daughter colony into surrounding watercomposed of hundreds of green algae cells each with 2 whip like flagellae and a red eye spot.
Getty Images
Volvox colony releasing daughter colony into surrounding watercomposed of hundreds of green algae cells each with 2 whip like flagellae and a red eye spot.
Volvox colony releasing daughter colony into surrounding watercomposed of hundreds of green algae cells each with 2 whip like flagellae and a red eye spot.
Getty Images
Volvox colony with daughter colonies; composed of hundreds of green algae cells each with 2 whip like flagellae and a red eye spot.
Volvox colony with daughter colonies; composed of hundreds of green algae cells each with 2 whip like flagellae and a red eye spot.
Getty Images
Volvox colony with daughter colonies; composed of hundreds of green algae cells each with 2 whip like flagellae and a red eye spot.
Volvox colony with daughter colonies; composed of hundreds of green algae cells each with 2 whip like flagellae and a red eye spot.
Getty Images
Volvox colony with daughter colonies; composed of hundreds of green algae cells each with 2 whip like flagellae and a red eye spot.
Volvox colony with daughter colonies; composed of hundreds of green algae cells each with 2 whip like flagellae and a red eye spot.
Getty Images
BCU Animatronic Sunflowers, flower heads rise and turn to sun, camera tracks up to reveal field then sky
BCU Animatronic Sunflowers, flower heads rise and turn to sun, camera tracks up to reveal field then sky
Getty Images
T/L Wood Anemones (Anemone nemorosa) flowering, Spring, United Kingdom, Blue screen
T/L Wood Anemones (Anemone nemorosa) flowering, Spring, United Kingdom, Blue screen
PBS
Tropism and Dormancy | UNC-TV Science
Since plants can't move to a better environment, they have their own way of dealing with less-than-ideal conditions. A quick animation provides learners with an overview of the strategies plants use to adapt within their environments....
Bite Sci-zed
Phototropism and Plant Hormones!
Ever wonder why all the sunflowers in a field face the same direction? Phototropism of course! Scholars get a quick but informative explanation of phototropism and plant hormones in an engaging video presentation. The narrator describes...
Be Smart
Do Plants Think?
Plants react to many different stimuli, but do they think? After many years, scientists now have a definite answer. A video shares the theories and facts as part of a larger biology playlist. From plants listening to music to plants...
FuseSchool
Plant Hormones: Tropisms
Why do stems grow up and roots grow down? A video from the Fuse School Plants playlist explains the four types of tropisms that control plant growth. Simple graphics demonstrate the importance of each type of tropism for various parts of...
Bozeman Science
Protists
Where do we put the organisms that don't fit in the other eukarya groups? We call them protists. A video explains why there is so much variety within the kingdom and the few things they do have in common with each other.