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
The two types of movement of the Earth are rotation and revolution. Rotation is the spinning of the Earth on an invisible axis. Revolution is the movement of the Earth around the sun.Full Answer >
According to the University of Southern California, the two types of ocean currents are surface currents, also know as surface circulation, and deep water currents also called thermohaline circulation. These currents make up 10 percent and 90 percent of all the water in the ocean respectively.Full Answer >
Two main types of seismic waves exist: body waves and surface waves. Body waves include P waves or primary waves and S waves or secondary waves. Surface waves include Love waves and Rayleigh waves.Full Answer >
There are four types of fossils: mold fossils, cast fossils, trace fossils and true form fossils. Fossils are divided into two distinct categories: fossilized body parts, such as teeth, claws, bones and embryos, and fossilized traces, including nests, tooth marks, droppings and footprints.Full Answer >