Flowering plants belong to one of two classifications: monocots or dicots. These names refer to the embryonic leaves, or cotyledons, of a plant. Monocots have one cotyledon, and dicots have two. Monocots include such woodland wildflowers as trilliums, blue flags and trout lillies. The bromeliad is a colorful, tropical monocot. Wild roses, black-eyed Susans, daisies and columbines are among the diverse dicot wildflowers.Know More
When a plant germinates, one or two tiny leaves emerge from the seed -- the cotyledons. These seed leaves are important in distinguishing a flowering plant's classification. Monocots have a single seed leaf while dicots have two. A closer look at the adult leaves of a flowering plant provides another important distinction between classifications. Monocots have many major leaf veins that run parallel to one another. Dicot plants tend towards branching veins, with smaller, auxilliary veins radiating away from major veins.
Another clue is the number of flower parts. Monocot flower parts are in multiples of three while dicots flowers have multiples of four or five. Cutting across the stem of a flowering plant reveals many small spots. These are vascular bundles, and their arrangement differs between monocots and dicots. Monocot stems have a scattering of vascular bundles whereas dicot stems have vascular bundles in a cylinder.Learn More
According to scientists, the earth is about 4.5 billion years old. However, because of the constant upheavals in climate, plate tectonics, asteroid strikes and other events, most of the evidence of the earth's beginnings are lost.Full Answer >
A biomass pyramid is a graphic illustration of the mass of organisms at each trophic level, which tends to get less as it goes up from producers to each level of consumer. There are inversions, however, where the mass of consumers is greater than the mass of producers.Full Answer >
My Science Box explains that Earth is a biosphere, as it is a global sum of all ecosystems. A biosphere is a closed system containing various zones of life. All living organisms within a biosphere are organized into various layers of complexity. These layers extend from the individual, to populations and communities, to ecosystems and biomes.Full Answer >
The densest material on earth was created by the Large Hadron Collider and named quark-gluon plasma. The substance can only exist in extremely hot temperatures and is denser than a neutron star.Full Answer >