How can auxin cause branching in one plant and suppress it in the other? How do plants survive in the Himalayas? How do trees grow on the Rocky Mountains? How do horsetails reproduce? When you germinate a seed, what happens, in general, on days 1, 2, 3, 4, 5, and 6?
Plants roots have three key roles: attaching the plants onto the soil, absorption of nutrients and water and conveying them upwards, and storing photosynthetic outputs. Certain roots are modified such that they can collect moisture and transfer gases. The majority of roots are ...
Plants absorb this nitrogen, which they need to grow, so the transfer of this nitrogen to the forests is important. Forests near streams with salmon actually reach maturity faster than other forests. OK. So, why's all this important? Well, salmon are in trouble. ...
The individual organisms with the variation best suited to survive in their particular circumstances have a greater chance of passing that trait on to the next generation. But plants and animals interact in very complex ways with other organisms and their environment. These factors work together to...
The process, known as vegetative reproduction, is how strawberries and many other plants reproduce. Pando is 47,000 trees spread across 106 acres (43 hectares) and may be up to 80,000 years old [source: Grant]. But in testament to the massive size of California redwoods, this batch of ...
Plants need to produce flowers to reproduce and, hence, survive. When the flowers bloom, they are pollinated, which results in the mixing up ofgenesfrom other plants of the same species. Eventually, the flowers develop into fruits that contain seeds. The seeds dissociate from the parent plant...
Roots should begin to grow in about three to four weeks. See above in How to Plant for more information on growing from seed. Flowering yuccas may need some help by hand pollinating them in order to produce seed. Note that only species plants will come true from seed and not all seed...
Bees benefit flowering plants by helping the plants reproduce, via pollination. Because plants cannot seek out mates the way animals do, they must rely on outside agents, called vectors, to move their genetic material from one plant to another. Such vectors include bees, certain birds and wind...
But every so often, a mutation will actually survive and the cell will reproduce. Imagine, for example, a bunch of identical E. coli cells that are living in a petri dish. With plenty of food and the right temperature, they can double every 20 minutes. That is, each E. coli cell ...
First, animals, unlike typical plants, eat other organisms to survive. Most animals, unlike plants, can move themselves from place to place. They can seek refuge from high heat and prolonged droughts. They have specialized tissues such as muscles, nervous systems and digestive systems. They tend...