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''no body can have life if its constituent parts are not cellular tissue or are not formed by cellular tissue.''
''no body can have life if its constituent parts are not cellular tissue or are not formed by cellular tissue.''
Lamarck even found time to write papers on physics and meteorology, including some annual compilations of weather data.
Lamarck even found time to write papers on [[physics]] and [[meteorology]], including some annual compilations of [[weather]] data.
''' How does Lamark's theory differ from Darwin's?'''
In basic terms, Lamarck thought that the way an animal behaved during its life could affect the form of its offspring. [[Darwin]] meanwhile thought that an individual animal might have a characteristic that gave it an advantage over other individuals of the same species, meaning that it would be more successful in reproduction.
The best example to illustrate this is in considering how the [[giraffe]] came to have a long neck.
'''Lamarck's''' theory suggests that [[giraffe]]s developed a long neck because the animals constantly stretched upwards to reach the highest leaves while it was feeding. As a consequence of this, its young were born with longer necks.
'''Darwin's''' theory suggests that [[giraffe]]s developed as they did because an animal with a longer than average neck would have an advantage in reaching foliage that its shorter-necked fellows could not. Therefore it would be healthier, more successful in breeding and hence more likely to pass on its long-necked genes.