Darwinism vs Lamarckism

Lamarck:

• Was the what to propose a what for evolution (how it might occur)

• Thought that what organisms were constantly arising by what and then what into more complex forms

• Organisms had a what to produce what that made them better what to their environment, and what the ones not used (Law of use/disuse)

• These acquired what can be passed on to what

• This theory focused on what in a population what. Disproved with what and what, but showed the connection between what and what in populations

Lamarck:

• Was the FIRST to propose a MECHANISM for evolution (how it might occur)

• Thought that SIMPLE organisms were constantly arising by SPONTANEOUS GENERATION and then EVOLVED into more complex forms

• Organisms had a MECHANISM to produce TRAITS that made them better ADAPTED to their environment, and LOST the ones not used (Law of use/disuse)

• These acquired TRAITS can be passed on to OFFSPRING

• This theory focused on INDIVIDUALS in a population CHANGING. Disproved with INHERITANCE and GENETICS, but showed the connection between ENVIRONMENTS and CHANGES in populations

Darwin:

Observation 1: Individuals within any what exhibits many what variations

Observation 2: Every what produces far more what than can survive to what

Inference 1: Individuals of the what species are in a constant struggle for what

Inference 2:" “survival of the fittest” Individuals with more favourable what are more likely to what and pass these what on. Survival is NOT what. This is what

Inference 3: Since individuals with more favourable what relative to their what contribute proportionately more what to succeeding what, their favourable inherited what will become more what. New what may result.

- Focused on what changing based on what

Darwin:

Observation 1: Individuals within any SPECIES exhibits many INHERITED variations

Observation 2: Every GENERATION produces far more OFFSPRING than can survive to REPRODUCE

Inference 1: Individuals of the SAME species are in a constant struggle for SURVIVAL

Inference 2:" “survival of the fittest” Individuals with more favourable VARIATIONS are more likely to SURVIVE and pass these VARIATIONS on. Survival is NOT RANDOM. This is NATURAL SELECTION

Inference 3: Since individuals with more favourable VARIATIONS relative to their ENVIRONMENT contribute proportionately more OFFSPRING to succeeding GENERATIONS, their favourable inherited VARIATION will become more COMMON. New SPECIES may result.

- Focused on POPULATIONS changing based on SELECTIVE PRESSURE

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