Life Science Final

Which environmental factors can influence the growth of both plants and animals according to the text?

• Temperature, humidity, soil type, and air quality

• Availability of food, light, space, and water

• Genetic factors, diseases, predators, and climate change

• Pesticides, herbicides, planting methods, and harvest times

What is the impact of increasing carbon dioxide in the atmosphere on poison ivy plants?

• The plants become smaller and produce less urushiol

• The plants grow less rapidly and are less affected by carbon dioxide

• The plants grow more rapidly and become larger with increased carbon dioxide

• The plants change color and produce more oxygen

What is tropism in plants?

• The process of photosynthesis

• A directed growth or movement in response to a stimulus

• The decay of plant material

• The transfer of pollen from one plant to another

What is positive tropism?

• A growth away from a stimulus

• A growth towards a stimulus

• A growth in random directions

• A growth that does not respond to any stimulus

What is negative tropism?

• A growth towards a stimulus

• A growth in random directions

• A growth away from a stimulus

• A growth that does not respond to any stimulus

What is phototropism?

• Growth in response to water

• Growth in response to touch

• Growth in response to gravity

• Growth in response to light

What is gravitropism?

• Growth in response to light

• Growth in response to gravity

• Growth in response to touch

• Growth in response to temperature

What is thigmotropism?

• Growth in response to temperature

• Growth in response to light

• Growth in response to touch

• Growth in response to water

What is heliotropism?

• The growth of a plant in response to heat

• The growth of a plant in response to water

• The turning response of a plant to follow the Sun

• The growth of a plant in response to soil nutrients

Look at the images below. Which type of behavioral response is best illustrated in each image?

• Gravitropism

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• Thigmotropism

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• Phototropism

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