Tree of Life
Plant Flower, Tree
Invertebrate Octopus, Ant, Bee, Butterfly, Spider, Lobster
Vertebrate Fish, Seahorse, Ray, Shark, Frog, Turtle, Tortoise, Dinosaur
Bird, Ostrich, Owl, Crow, Parrot
Mammal Bat, Rabbit, Giraffe, Camel, Horse, Elephant, Mammoth
Whale, Dolphin, Walrus, Seal, Polar Bear, Bear, Cat, Tiger, Lion, Dog, Wolf
Monkey, Chimpanzee, Human
These are organized by a classification scheme developed exclusively for Cosma. More…
flower : : the specialized part of an angiospermous plant that occurs singly or in clusters, possesses whorls of often colorful petals or sepals, and bears the reproductive structures (such as stamens or pistils) involved in the development of seeds and fruit : blossom — Webster
Flower, sometimes known as a bloom or blossom, is the reproductive structure found in plants that are floral (plants of the division Magnoliophyta, also called angiosperms). The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs. Flowers may facilitate outcrossing (fusion of sperm and eggs from different individuals in a population) or allow selfing (fusion of sperm and egg from the same flower). Some flowers produce diaspores without fertilization (parthenocarpy). Flowers contain sporangia and are the site where gametophytes develop. Many flowers have evolved to be attractive to animals, so as to cause them to be vectors for the transfer of pollen. After fertilization, the ovary of the flower develops into fruit containing seeds. In addition to facilitating the reproduction of flowering plants, flowers have long been admired and used by humans to beautify their environment, and also as objects of romance, ritual, religion, medicine and as a source of food. — Wikipedia
Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.
Loons likely to disappear from Minnesota due to...
on October 14, 2019 at 1:05 pm
Minnesota could lose its beloved state bird in coming decades if humans don't stall climate change and prevent the common loon from shifting north.
Saving heather will help to save our wild bees
on October 11, 2019 at 11:56 am
A new study published today in the journal Current Biology from the Royal Botanic Gardens, Kew and Royal Holloway, University of London, has discovered that a natural nectar chemical in Calluna heather called callunene can act as a medicine to protect bumblebees from a harmful parasite. The parasite, Crithidia bombi, is common among wild bumblebees and can be transmitted between bumblebees on flowers or within the nest.
Carnivorous plant study captures universal rules...
on October 10, 2019 at 6:00 pm
Leaves display a remarkable range of forms from flat sheets with simple outlines to the cup-shaped traps found in carnivorous plants.
Astronauts and citizens team up against light...
on October 9, 2019 at 1:40 pm
For an astronaut looking out of the International Space Station windows, city lights are brighter than the stars. To tackle light pollution citizen scientists are urged to help map out the problem on their smartphones by identifying images of cities taken from space.
When laying their eggs, tobacco hawkmoths avoid...
on October 8, 2019 at 3:43 pm
Ovipositing insects use odor cues to select suitable food substrates for their offspring in order to increase the survival rates of the larvae. Scientists from the Max Planck Institute for Chemical Ecology demonstrated that not only may plant odors determine the best oviposition site, but also the frass of other larvae of the same species. They specified the repelling substance in the feces of tobacco hornworm larvae which signals the presence of competing conspecifics to the female moths.