Identify what is being asked in each item.? 1.this layer is made up of melted metals such as iron and nickel.
2.the layer of the erath that is divided in two layers.
3.it is the thickest layer of the earth.
4.this layer of the earth is composed mainly of solid iron and nickel.
6.it is the thinnest layer of the earth.

1. outer core

2. lithosphere

3.mantle

4. inner core

6. crust

both anaerobic and aerobic respiration use glucose (or other carbohydrates), proteins and lipids to produce atp and nadh. cell uses those energy molecules, obtained from food and   breaks them down during the chemical reactions of respiration. in anaerobic respiration, nadh is regenerated to nad+ by enzymes lactate dehydrogenase (lactate is produced, e.g. in muscle cells) or by alcohol dehydrogenase where ethanol is produced (alcohol fermentation), while in aerobic respiration, electrons from nadh are deposited in the mitochondria to regenerate nad+ (electron transport chain. anaerobic respiration produces 2 atp per molecule of glucose compared to aerobic respiration where about 38 atp molecules are produced.

1. b.

2. d.

3. a.

5. d.

6. c.

these are the only ones that i know, i hope this , and good luck.