Science

• Corolla/Petals

  They come in various

  color, shapes and

  sizes.
• Nectarines give them(petals)

  the scent that attract

  agents of pollination.
• Calyx/Sepals

  They protect the

  flower when it is still

  a bud.
• Receptacle

  It supports the entire

  flower
• Peduncle/Stalk

  It connects the flower

  to the branch or stem.
• Pistil

  It is the female

  reproductive structure

  made up of the stigma,

  the style, and the ovary.
• Parts of the Pistil

  
  

  Stigma is the swollen

  knob tip of the pistil.

  Style is the long,

  slender tube that

  connects the stigma and

  ovary.

  Ovary is the one that

  houses the ovule.
• Stamen

  It is the male

  reproductive structure

  composed of the

  anther and the

  filament.
• Anther is the

  pollen-producing

  organ of the flower.
• Filament is the stalk

  that holds the anther.
• Self-pollination

  occurs when the

  pollen is transferred

  from the stamen of

  one flower to the

  pistil of the same

  flower.
• Cross-pollination is

  when the pollen grain is

  transferred from the

  anther of one flower to

  the stigma another

  flower of the same

  kind.
• Seed Dispersal

  It refers to the process by which seeds are

  scattered, moved, or transported away from

  the parent plant to a much wider area.

  It prevent overcrowding of the same plants in

  a specific area and competition.
• Gymnosperms

  They are nonflowering plants that produce

  "naked seeds" that are exposed to the air.
• Conifers produce woody cones that hold

  their seeds
• Mosses

  They do not have true

  roots; instead, they

  have short, slender

  root-like growths

  called rhizoids.
• Cutting

  It is done in any vegetative part of a plant-stem,

  leaf, or root-used to produce a new individual
• Layering

  A stem is bent over so that part of it is covered

  with soil.
• Grafting

  Two healthy stems from different plants are

  taken and put together.
• Ferns

  Its stems are rhizomes

  that grow along the

  ground and reproduce

  by spores.
• An Estuary is a coastal water

  body where

  freshwater from

  rivers and streams

  mixes with salt

  water from the

  ocean.
• An Estuary may be called a

  bay, a lagoon, or a

  harbor.
• Estuaries serve as nursery grounds for certain species of crustaceans and fishes.
• Coastal Plain Estuaries

  They are created or formed

  when the sea level rises

  and falls in existing river

  valleys.
• Bar-built Estuary

  It is formed when a lagoon

  or a bay is protected from

  ocean currents and waves

  in coastal areas by

  sandbars and barrier

  islands.
• Delta System Estuary

  They are formed at the

  mouths of large rivers

  from sediment and silt

  depositing instead of being

  washed away by currents

  and waves.
• Fjord Estuaries are U-shaped valleys

  that are formed or created

  by glacial action.
• Tectonic Estuaries is A major crack or the

  drifting apart of Earth's

  crust often caused by

  earthquakes create tectonic

  estuaries.
• plants found in estuaries need to be

  adapted to salty conditions, strong currents

  and storm waves, varying exposure to

  sunlight and winds, and low oxygen levels

  in muddy soils.
• The biggest estuarine animal:

  estuarine crocodile
• Estuaries are often called "nurseries of the sea."

  Thousands of species of birds,

  mammals, fish, and other wildlife

  depend on estuarine habitats as places to

  live, feed, and reproduce.
• The Intertidal Zone is the area with a

  very broad zone that

  lies between the

  highest high tide

  and the lowest low

  tide and is often

  flooded by the tide.
• Tides are the rising

  and falling of the

  earth's ocean

  surface. These are

  controlled by the

  moon's gravity

  pulling on the
• A typical rocky shore is divided into two:

  a spray zone that is often dry and is

  covered by water on extremely high tide

  and an intertidal zone that lies between

  extremely high tide and low tide.
• Splash Tidal Zone

  It is also known as the

  supratidal zone. This area

  is covered with water only

  during storms and is dry

  most of the time.
• High Tide Zone

  It is an environment with

  very saline water. It is

  covered with water during

  peaks of high tides. But it

  can be out of water for a

  long time.
• Middle Tide Zone

  It is the most active region

  since it is covered and at

  times uncovered with salt

  water.
• Low Tide Zone

  It is also known as the

  subtidal zone. This zone is

  mostly submerged in water

  and exposed only for a

  longer time during

  extremely low tides.
• Moisture - very wet and very dry conditions
• Waves - wash away or misplace organisms