Please do no.1 and 2

1: plant cells have a cell wall and also have a cell organelle called chloroplasts.
Cell wall provides the structure for a plant because it doesn’t have bones like animals do, and chloroplast help make it food through photosynthesis.
2: the cell membrane in both plant And animal cells helps lets needed materials in for the cell (plant: lets in water, and co2) (animal: lets in other materials), cell wall provides structure to a plant cell, but animals don’t have it because we have bones. Nucleus in both plant a animal cells help control the organelles and make them function properly, cytoplasm in both plant and animal cells helps hold all the organelles of the cells in place and lets materials travel around the cell to where it’s needed. The mitochondria help provide both an animal and plant cel energy for its everyday processes and is needed for the organelles to function properly. The chloroplasts which are only in plant cells, helps the plant make food for itself whereas we can shut get our nutrients by getting up and getting/eating food. Finally, vacuoles in both plant and animal cells helps hold food and other materials for the cells but mainly in plant cells where the vacuoles are bigger and are needed to hold much of the extra water for when the cell needs it.

Environmental science studies the interactions between the physical, chemical, and biological components of the environment, including their effects on all types of organisms. earth science (also known as geoscience), is an inclusive term for all sciences related to earth (geology, meteorology, oceanogr maphy, etc).  although environmental and earth science cover essentially the same material, environmental science places greater emphasis on the biological realm, while earth science places greater emphasis on the physical realm.    environmental and earth science study the interactions of four major systems or “spheres” (figure 8.6).  the  geosphere  consists of the core, mantle and crust of the earth.the  atmosphere  contains all of the earth’s air and is divided into troposphere, stratosphere, mesosphere, thermosphere and ionosphere.the  hydrosphere  contains all of the solid, liquid and gaseous water on earth, extending from the depths of the sea to the upper reaches of the troposphere where water is found.  ninety-seven percent of the hydrosphere is found in salty oceans, and the remainder is found as vapor or droplets in the atmosphere and as liquid in ground water, lakes, rivers, glaciers and snowfields.  the  biosphere  is the collection of all earth’s life forms, distributed in major life zones known as biomes:   tundra, boreal forest, temperate deciduous forest, temperate grassland, desert, savannah, tropical rainforest, chaparral, freshwater, and marine.although the four systems have their unique identities, there is substantial interaction between them.  environmental scientists study the effects of events in one sphere on the other spheres. for example, a volcanic eruption in the geosphere may cause profound direct and indirect effects on the hydrosphere, atmosphere and biosphere as follows: example 1 (volcano)    on may 18, 1980, mount saint helens, in the state of washington, erupted.  this event altered the surrounding environment, and provided scientists with an opportunity to study the effects of volcanic eruptions on the geosphere, hydrosphere, atmosphere and biosphere.  such studies are vital because volcanic eruptions will continue to occur, and will have increasing impact on humans as people continue to settle lands closer to dormant volcanoes. the following are but a few of the myriad of interactions resulting from a volcanic