(ii) Official figures state that 100 g of groundnuts contain 2 428 000 J energy. With reference to the apparatus in Fig. 2.1, suggest two reasons why the
experimental energy value for 100 g of groundnuts is much lower than the official
energy value.
1.
2.

What would happen if the tubing with the yellow band was placed in a beaker of distilled water?

This is a typical grassland food web. it is also a small picture of an important cycle on earth: the carbon cycle. describe how the carbon gets into this food web. a) bacteria and fungi, the decomposers, recycle carbon from dead organisms. b) carbon is found in the grass and is passed from one level to the next in this food web. eliminate c) all living things give off carbon dioxide as a by-product of respiration and it is released into the atmosphere. d) plants use carbon dioxide as a reactant in photosynthesis, to make usable chemical energy in the form of a sugar.

Is genetic diversity the same as genetic variation?