Tuesday, April 23, 2013

Animal Habitat Structure.

1. How does eelgrass density influence abundance of species in an ecosystem?



Eel grass is an important habitat and today eel grass its habitat and beds for a lot animals. they act as a nursery, habitat and feeding ground for many fish, waterfowl and invertebrates.



2. Find web sites to support your hypothesis, and include wed site addresses.
buzzarasbay.org/eelgrass.html

Animal Habitats of San Diego Bay

1. San Diego is... (location, size, fact)
 -San diego is located on the coast of the pacific ocean in southern california. With a population of 1,326,179 and is the 8th largest city in the united states

2. What type of activities occur on the bay?
-There is navy ships and ship ports

3. How and where on the bay is salt made?
-Salt is made through evaporation and on the edge of chula vista.

4. Where is the SD national wild life refuge complex located?
-In South San Diego in the largest mud flats.

Friday, April 19, 2013

Thermal Characteristics Of Water


Thermal Characteristics Of Water



1. Are heat and temperature same or different?

They are different. Temperature is the measurement of kinetic energy. Heat is total energy

2. What is the heat capacity?
The number of heat units needed to raise the temperature of a body by one degree.





3. How is the capacity of water unique?
It is like a sponge. It is how much heat an object can absorb before it increases in temperature.

4. How does water temperature affect its density?
The warmer the water the less dense. The cooler the denser.

Energy Flows Though Ecosystems.



Energy Flows Though Ecosystems.

1. Examples of primary producers are, and how to they get their energy?

Plants, algae, and some bacteria use solar energy to produce organic plant material through photosynthesis. 

2. The second trophic level is made up of what creatures, and from where do they get their energy?

Herbivores—animals that feed solely on plants—make up the second trophic level. 

3. Why do predators make up the third trophic level?

Because predators eat herbivores and they comprise the third trophic level.

Tuesday, April 16, 2013

Surface Water and Global Temperatures




Surface Water and Global Temperatures


1- Thermal Inertia: San Francisco and NorfolK, Virginia area are the same Latitude, Why would you NV compare to SF, have warmer summers and cooler winters?

About half of this light reaches the surface, where it is converted to heat, then transferred into the atmosphere by conduction, radiation, and evaporation. the atmosphere, like the land and ocean, eventually radiates the heat back into space in the form of long wave (infrared ) radiation.




2- Describe the different ways temperatures are "moderated" on Earth without moderate temperatures, Earth could not support life as we know it.

Water takes much longer than air to heat up and also longer to cool because it has much higher specific heat. thus, on hot days, water (oceans, lakes and rivers) absorb heat, keeping the air something cooler. when the air gets cool, however water slowly releases heat to the atmosphere raising air temperatures. this is why temperatures along coast lines are cooler in summer and warmer in winter relative to inland areas. temperature varies.