For species with bicellular pollen, the attrition of pollen tubes is often greatest where the style narrows at the transition between stigmatic tissue and the transmitting tissue of the style. In this ...

Using a mathematical model, an international team of researchers has been able to show that heterotrophic bacteria inside sinking particles can fix nitrogen in nearly every part of the global ocean.

All living organisms need energy to perform various life processes and the source of energy for all living organisms is food. It is available from different sources. There are two types of modes of ...

Corals obtain energy in two ways: firstly, through photosynthesis by their symbiotic algae, and secondly by taking up small food particles such as plankton directly from the water. In scientific terms ...