### cone:

Cinder cone
* Some cinder cones have phases.
* are commonly very symmetrical
  - formed from tephra or ash and tuff which is thrown from an explosive vent
  - natural things
  - numerous, occur in all sizes, and tend to rise steeply above the surrounding area
  - often smaller than shield volcanoes, and they wear away easily
  - quite numerous in Western North America
  - the simplest type of volcano
* are the smallest types of volcanoes
  - volcanoes and are cone-shaped
  - usually small
  - very small cone-shaped volcanoes
  - volcanic edifices that form from the buildup of pyroclastic materials
  - volcanos
* build from erupting lava that breaks into small pieces as it blasts into the air
  - lava that is blown violently into the air and breaks into fragments
  - up when mostly tephra erupts from a vent and falls back to earth around the vent
* can form on the flanks of shield and stratovolcanoes
  - quite rapidly, i.e., on the order of months to several years
  - grow very large, even wider in diameter than their maximum ejection distance
* can occur alone but commonly occur in groups or fields
  - or in small to large groups or fields
* form mostly from tephra and are conical in shape.
* occur in nearly every western state.
* range in size from tens to hundreds of meters tall.
* tend to be steepest near the vent, and less steep at the outer edge.
* wear away a lot easier than shield volcanoes.

Composite cone
* Most composite cones occur alone or are separated by several tens of kilometers.
* are a type of larger volcano.

### cone:

Female cone
* Most female cones have centers
  - structures
* Some female cones contain ovules
  - seeds
* Some female cones produce ovules
  - spores
* are much larger than male cones
  - quite different in size and shape from one kind of conifer to the next
  - the more familiar cones that people associate with pine trees
  - usually singular, only one per plant, though there are a few exceptions
  - megasporangia located within ovules at the bases of the female cone scales
  - structures called ovules
* produce eggs while male cones produce sperm
  - ovules within their scales
  - seeds and the male cones produce pollen

Growth cone
* Some growth cones consist of actin filament
* can simultaneously respond to both ligands in a cell-specific fashion.
* turn up concentration gradients of diffusible peripheral target-derived factors.
* utilize both widespread and local directional cues in the zebrafish brain.

### cone:

Male cone
* Some male cones contain pollen
* are beneath female on the tree to avoid self-pollination and increase genetic diversity
  - formed on separate trees
  - largely inconspicuous, but exist on every kind of pine tree
  - normally smaller than female cones
  - small and similar in all conifers
* can be singular, but more often there are two or more per plant.
* contain pollen and female cones contain eggs.
* generate pollen, from sex organs called microsporangium.
* is called pollen cone consist of sporophyll, and leaf like scales that bear sporagia.
* make pollen, which is carried to female cones by the wind.
* produce pollen, which is taken by the wind and fertilizes female eggs by that means.
* shed a lot of pollen grains in great numbers, to be fertilized by female gametophyte.
* stay viable for a few days when stored in a plastic bag.

Parasitic cone
* Many parasitic cones exist within the two calderas.
* can form on the side of an inactive volcano when activity is resumed.

Pine cone
* Some pine cones produce spores.
* are a major food staple for many kinds of wildlife.
* are located in forests
  - roofs
* have five swirls headed one direction and eight the other.
* mature, opening up and releasing the seeds.
* reach maturity in two years in almost all species.
* rely on the force of the wind to blow their seeds to a spot where they can grow.
* vary widely in appearance depending on the species.