II As you read... C.
1. What is "plant food" that we buy in a store? Do the plants need it?
2. What would happen if you put a small seedling in complete darkness for a month
but kept all the other environmental conditions the same? Why would it do this?
3. Where does the following get their energy from:
a. A lion?
b. A zebra?
The grass?
4. An organism that makes its own food is called a:
5. An organism that can not make its own food is called a:
6. An organism that obtains food by eating other organisms is called a
7. What are the two ingredients needed for photosynthesis?
8. What is the source of energy for photosynthesis to occur?
9. What are the two products of photosynthesis?
10. Photosynthesis occurs in the cellular organelle called the:
11. The main chemical/pigment needed for photosynthesis is the
12. What is given off as a waste product during state 1 of photosynthesis - that most
animals need to breathe?
13. What is produced in stage 2 of photosynthesis?
14. What is the formula for photosynthesis? (copy it carefully from p 307)

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.

some inherited genetic mutations can be good for the offspring, so the answer is different genetic mutations cause many forms of cancer.