Roberge 6.302 Lecture 09
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School Governors: building relationships
School governors need the skills to develop working relationships with the school community. This unit will help you to understand what each stakeholder within the community needs, from headteacher to pupils and parents. Effective interaction between all parties can prevent problems from arising.
California juniper tree
The juniper tree is a gymnosperm from the phylum of conifers. The cone is the reproductive structure of conifers. The berry-like structures are actually cones where reproduction occurs.
Caecilian
One reason why caecilians are considered to be amphibians is because they go through metamorphosis to reach adulthood. Caecilians are unique amphibians because some of them lay eggs, but some of them give birth to live young.
Butterfly pupa anatomy
The pupa is the third stage of the butterfly's life cycle. The caterpillar creates a pupa, sometimes called a chrysalis, and emerges as the adult butterfly after metamorphosis. The butterfly's wings will be used for flying.
Breathing tube of a mosquito larvae
The breathing tube is one organ of the respiratory system (along with the lungs in animals). The breathing tube allows for the intake of oxygen and the disposal of carbon dioxide.
Boy on trampoline
The boy would feel less secure if the safety net around the trampoline wasn't there. Humans have an innate need to feel secure in their environments.
Blooming prickly pear cactus (Opuntia) from the Sonora desert
Cacti are often overlooked as flowering plants. In fact, cacti bloom with colorful flowers and reproduce like all other angiosperms.
Bee on flower
Bees visit flowering plants to collect nectar so they can store it as honey back at their hives. As a bee visits one flower after another, pollen collects on its entire body and especially on the legs. Bees help pollinate flowers while they collect nectar. This is a mutualistic behavior.
Basic Needs: U.S. currency
Humans need to feel financially safe and stable.
Balance and flux
Ecosystems and populations of organisms within ecosystems function by the principle of balance and flux. Balance can be thought of as a state of equilibrium, or a state of equal changes between two sides. Flux can be thought of as a rate of flow or changes. Even small changes in an ecosystem's or population's balance and flux could lead to disaster.
Fly on a leaf
Flies are insects that eat dead plant and animal material. Their ingestion and digestion of detritus leads to respiration and excretion of important nutrients back into the soil and water.
Red Mite
One reason why mites are considered to be arachnids is because they don't have wings and they cannot fly. Mites are so tiny that most of them have to be viewed under a microscope to be seen.
3D Global Methane
An animation of the three-dimensional structure of global methane evolving over time, from a global data assimilation model
Arctic Ozone from February 1, 2003 through March 30, 2003
This visualization shows the northern hemisphere ozone hole from February 1, 2003 through March 30, 2003.
West Africa Dust Storms
On the Coast of West Africa, dust storms are a common occurrence, if you take a look at this one, its about the size of Spain.
Annually Occurring Aerosol Features: Biomass Burning in Southern Africa from July to September 1986
Aerosol index over Africa from July 2, 1986 through September 7, 1986 as measured by the Nimbus-7 Total Ozone Mapping Spectrometer (TOMS)
Numerical Simulation of Magnetic Flux Emerging Through a Model Solar Atmosphere: Density
This animation is one of a series depicting the results of a two-dimensional ideal magneto-hydrodynamic simulation of magnetic flux emerging through a solar atmosphere. The simulation has a resolution of 300x500 cells and a length scale of 16 Mm x 6.8 Mm. The simulation depicts 1730 seconds in the evolution of the model.
High Resolution 2-D Numerical Simulation of Emergence of Magnetic Flux Through the Solar Atmosphere
This series of animations (animations 107, 1416, 1417, and 1418) show sheets of magnetic flux undergoing velocity perturbations. The conditions for each simulation are outlined within the video.
A 3-Dimensional Model of the Magnetosphere (WMS)
The earths magnetosphere protects the earth from high-energy charged particles coming from the sun. Some charged particles are deflected by the magnetosphere, while others become trapped and produce the aurora. This presentation shows a 3-dimensional model of the magnetosphere. The features that it highlights are flat ribbons representing the paths of charged particles deflected by the magnetosphere, triangular ribbons representing magnetic field lines, and colored surfaces representing constant
