Plant responses AS – 3.3 (91603) INTERNAL

Environment & Responses  Organisms need to survive and reproduce (contributing their alleles into the gene pool) in order to be successful.

Environment & Responses  Organisms need to survive and reproduce (contributing their alleles into the gene pool) in order to be successful.  Animal responses are adaptations for survival and reproduction through: - Finding favourable conditions and avoiding unfavourable

Environment & Responses  Organisms need to survive and reproduce (contributing their alleles into the gene pool) in order to be successful.  Animal responses are adaptations for survival and reproduction through: - Finding favourable conditions and avoiding unfavourable - Obtaining nutrients, energy, water and oxygen

Environment & Responses  Organisms need to survive and reproduce (contributing their alleles into the gene pool) in order to be successful.  Animal responses are adaptations for survival and reproduction through: - Finding favourable conditions and avoiding unfavourable - Obtaining nutrients, energy, water and oxygen - Reducing competition

Environment & Responses  Organisms need to survive and reproduce (contributing their alleles into the gene pool) in order to be successful.  Animal responses are adaptations for survival and reproduction through: - Finding favourable conditions and avoiding unfavourable - Obtaining nutrients, energy, water and oxygen - Reducing competition - Avoiding predation/reducing herbivory (if plant)

Environment & Responses  Organisms need to survive and reproduce (contributing their alleles into the gene pool) in order to be successful.  Animal responses are adaptations for survival and reproduction through: - Finding favourable conditions and avoiding unfavourable - Obtaining nutrients, energy, water and oxygen - Reducing competition - Avoiding predation/reducing herbivory (if plant) - Finding a mate (same species!)

Abiotic Factors – non-living  Include temp, light intensity, humidity, wind speed, salinity, pH, water, oxygen, carbon dioxide and mineral levels, and substrate.

Abiotic Factors  Include temp, light intensity, humidity, wind speed, salinity, pH, water, oxygen, carbon dioxide and mineral levels, and substrate.  Eg – some abiotic factors are terrestrial = humidity and wind. Some are important in water = pH, salinity etc.

Abiotic Factors  Include temp, light intensity, humidity, wind speed, salinity, pH, water, oxygen, carbon dioxide and mineral levels, and substrate.  Eg – some abiotic factors are terrestrial = humidity and wind. Some are important in water = pH, salinity etc.  Organisms can only live in areas where the abiotic factors are within the range of the physiological tolerance.

Abiotic Factors  Include temp, light intensity, humidity, wind speed, salinity, pH, water, oxygen, carbon dioxide and mineral levels, and substrate.  Eg – some abiotic factors are terrestrial = humidity and wind. Some are important in water = pH, salinity etc.  Organisms can only live in areas where the abiotic factors are within the range of the physiological tolerance.  Eg – If pH, salinity, light intensity etc are outside the range for Elodea (pond weed) it will die off.

Abiotic Factors  Include temp, light intensity, humidity, wind speed, salinity, pH, water, oxygen, carbon dioxide and mineral levels, and substrate.  Eg – some abiotic factors are terrestrial = humidity and wind. Some are important in water = pH, salinity etc.  Organisms can only live in areas where the abiotic factors are within the range of the physiological tolerance.  Eg – If pH, salinity, light intensity etc are outside the range for Elodea (pond weed) it will die off.  Many abiotic factors change in a rhythm = predictable manner. Both plants and animals can detect these changes and respond accordingly.

Biotic Factors - living  Are the influences and interactions with other living organisms.

Biotic Factors - living  Are the influences and interactions with other living organisms. - Competition (intraspecific = within species & interspecific = between species)

Biotic Factors - living  Are the influences and interactions with other living organisms. - Competition (intraspecific = within species & interspecific = between species) - Exploitation (predation, herbivory, parasitism)

Biotic Factors - living  Are the influences and interactions with other living organisms. - Competition (intraspecific = within species & interspecific = between species) - Exploitation (predation, herbivory, parasitism) - Mutualism