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Lamarck's theory suggests that changes that are obtained during a lifetime can be passed on to the offspring of that creature. The changes typically favour survival for the animal. For example, if a giraf...
environmental factors such as gravity and light enable plants to grow in the correct direction, in the case of shoots, they exhibit positive phototropism, growing towards a light source, and in the case o...
The lagging strand in DNA replication is the strand of the double-stranded DNA molecule that has to be synthesised discontinuously. This is because the two strands of DNA molecules are antiparallel, so r...
The following are all good answers to this question: Animals are heterotrophic whereas plants are autotrophic Plants can photosynthesise but animals cannot Plants are sessile (do not move) whereas most an...
In muscle, myosin protein has 'heads' that act as cross-bridges as they bind to actin, another protein. When ATP binds to myosin, its head detaches from actin, swings forward and rebinds. Rebinding releas...
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