Class: 1

Date: February 09/10 (Tuesday)

Item: curriculum

Biology 7°

1. Achievement:

· Recognize that the cell is the smallest unity of structure and function and it formed the life.

2. Goal:

· Differences functions and cell organelles.

· Identifies plant cell and animal cell.

· Recognize and difference tissues.

· Explain mitosis and cell division.

· Process and cell be organized to from tissues, organs, apparatus, systems, and living things.

· Identified animal tissues and vegetal tissues

Topics

1. The cell

· Structure

· Function

· Cell

2. Animal cell

Vegetal cell

3. Cell division

· Mitosis

· Meiosis

4. Tissues

· Vegetal tissues

· Animal tissues

5. Levels of the cell organization

Homework

The consult and do a definition of cell. With mine own words

date martes, 9 de febrero de 2010

1. explain these sentences by giving examples.

* a specific are and the living and nonliving things found there form an ecosystem.
* there is a connection between all the living things occur in different areas.
* changes to an area affect the animals and plants that live there.

2.what effects can each of these human actions have on the environment?

*putting polluted water into the ocean
* creating protected natural areas
* building a new road
* out lawing the huntin of specific animals

3. how can we measure temperature by using a thermometer?what units is temperaturemeasured in?

basic content.

4.complete these sentences

* these elements influence the climate in an area: __________,_____________,_________and____________.

*temperature varies with_________and________
we measure temperature with a _______.
- there is more precipitation in _________,__________and__________.
- we use an anemometer to measure wind__________.we use a
_________to determinethe wind's direction.

5. copy and complete the table.



6. what are the main differences between these biomes?

* desert and tropical rain forest.
*decidous forest and chaparral.

7. match the numbers with the words. color the tropical zone red, the polar zones blue and the temperature zones orange.

equator artic circle
tropic of cancer tropical zone
tropic of capricorn temperate zones

antartic circle polar zones


8. copy and complete the diagram



the environment
is made up of has the following problems
which we could solve by
synthesize
9. draw and answer the questions.
* draw the earth. color the areas where living things can survive in red.
* are there living things in the core of the earth?
* are there living things at the botton of the ocean ?
10. can the same country have several different biomes? explain with an example.
11.explain the differences between a biome and the environment.
12.answer the questions and suggest solutions.
*what are the main environmental problem of tropical rain forests?
*what are the main environmental problems of temperate forests?
answers
1.
In the ocean, there is water mineral salts, little light and living things, like fish, whales and algae. in the savanna, giraffes eat the leaves of plants; lions hunt the giraffe's young; hyenas eat the remains of animals. plants and animals, like the cactus and desert fox, are adapted to the shortage of water in the desert; in the jungle, there are living things, such as ivy, that need a lot of humidity. if a pond in a forests dried up, the living things that depend on that pond to survive (e.g.,algae,moss frogs,perch) would also dissapear.
2.
The death of many forms of marine life and illnesses in the people who eat the contaminatedfish or seafood. protecting the life of many plants and animals. deforestation,destruc

date miércoles, 28 de octubre de 2009

The environment

All living things and the characteristics of the area where they live (temperature, humidity, soil etc…) from the environment.
A plant or animal can only survive in certain environment. Every living thing needs to live in a specific type of place. However people have adapted to beable to live anywhere.
Our environment is the whole planet
Environmental problems:
Environmental problems cause damage to the environment. They harm living things and their habitat.
The main environmental problems are:
1. Pollution: the accumulation of harmful substances on the ground, in the air and in the water causes pollution. These substances harm living things.

2. Deforestation: is the disappearance of forests. Cutting down too many trees, pollution and fires all cause deforestation.


3. Desertification: is the transformation of some landscapes into desert areas. The soil becomes very dry and poor. Few living things can survive in these areas.

4. Habitat loss: occurs when natural areas are destroyed to make room for housing or industry. Habitat loss can also occur because of deforestation or desertification.



5. Excessive development, hunting, fires and other actions can use the extinction of living things.

Solutions
1. Reduce pollution.
2. Avoid cutting down wild trees for wood.
3. Outlaw the hunting of animals.
4. Protect specific natural areas.

Class work
Explain these sentences by giving examples:
• A specific area ecosystem.
• There is a connection between all the living things in an ecosystem.
• Different living things occur in different areas.
• Changes to an area affect the animals and plants that live there.
What effects can each of these human actions have on the environment?
• and the living and nonliving things found there from and
• Putting polluted water into the ocean.
• Creating protected natural areas.
• Building a new road.
• Outlawing the hunting of specific animals

Development

Because in the ecosystem if there are living beings and nonliving creatures. for example: plants, animals, stones and more.

I think because there is nothing if not living in an ecosystem.

If clear affects animals and living things because their habitat is no longer the same.

if for the living and the things we have not even found in many different areas.

if animals are used unclear why living in a very different climate

if we place in the sea water contaminated animals may die because the previous water was not polluted.





date jueves, 1 de octubre de 2009

date

date

Biomes

Is a group of ecosystems that have similar light, temperature, humidity and living things?
For example: the rain forest in the world.
Specific living things occur in each type of biome. Each biome is in a specific climatic zone.
Biome of warm zones:
There are three types of biomes in warm zones:
The desert: is a biome where there is a little water. The temperatures are very high during the day and very low at night. Cacti, coyotes and camels live in the desert biome.
Tropical rain forest: it rains a lot. It is very humid and warm, are also very dense, they have a lot of trees, like rubber trees, and animals like the toucan.
The savanna: is a biome where a very dry season is followed by rainy season every year.
The most common plants are types of grass. The trees grass for apart from each other.

Giraffes and lions live in the African savanna.

Temperate zone biomes: this biomes are in the temperate zones.
Chaparral: evergreen plants and brushes are found here. These plants can survive hot, dry summers. Typical plants include thyme and oak. Rabbits and boars live here.
Temperate forest: pine trees and trees that lose their leaves in autumn are typical of these forest. Spruce and elm trees, deer and bears live here.
Prairies and steppes: this biome is a large plain covered with grass. There are few trees the prairie dog and the bison live in this biome.
Biomes of cold zones: the tundra and boreal forest are in cold zones.
The tundra: Has very low temperatures. Lichens and small plants like moss are characteristic plants. Reindeer and the arctic fox live here.
Boreal forest: are cold zone forest characteristic plants include lichens, pine trees and fir trees. The ground of boreal forests is covered with ice and snow for many months of the year. The beaver and the Canada lynx live in this biome. Boreal forests are also called taiga.

date sábado, 26 de septiembre de 2009

The environment

Factors involved in climate
The climate of on area several factors, these factors change from one place to another. They depend on how far a place is from equator, how far it is from the ocean and its altitude.
Temperature: varies with distance from the equator and altitude. At high altitudes, the temperature is lower. At low altitudes, temperature is higher. Temperatures are milder on the coasts than in inland regions. This is due to the influence of the ocean.
Precipitation: such as rain, snow and hail, comes from the water in the atmosphere. There is more precipitation near the equator, on the coast and in the mountains. We use a rain gauge to measure precipitation.
Pressure: is the force s on that air exerts on the earth’s surface. Pressure varies with altitude. High areas have low pressure. Low areas have high pressure. We use a barometer to measure pressure.
Wind: is the movement of air. Winds move between areas that have different temperatures and pressures. We use an anemometer to measure wind speed. We use a weather vane to determine its direction.
Climatic zones: we can divide the earth into large climatic zones depending on the type of climate in each zone:
Tropical zone: is located between the tropic of cancer and the tropic of Capricorn. The temperatures are very high because the sun’s rays are perpendicular to the earth’s surface.
Polar zones: there are two; one is in the northern hemisphere, north of the Artic circle. The other is in the southern hemisphere, south of the Antarctic Circle. The temperatures at the poles a very low because the sun’s rays are very slanted when they reach the earth.
Temperate zones: there are two, on each hemisphere. They extend from the tropics to the polar circles. The temperatures in these areas are not extreme. This is because the sun’s rays are slightly slanted when they reach the earth.
The distribution of these zones generally depends on their distance from the equator. Within each zone, distance from the ocean and altitude also cause climatic differences.





date jueves, 17 de septiembre de 2009