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WorksheetsStimuli and Response in Organisms
Total questions: 25
Worksheet time: 2hrs 35mins
Roots grow downward in the soil in response to -
gravity
sunlight
water
wind
When an animal is thirsty, it responds by -
eating food
drinking water
blinking rapidly
sweating excessively
A crocodile quietly stalks its prey, a wildebeest, drinking at a water hole. The wildebeest suddenly sees the crocodile approaching. The wildebeest’s body responds by -
shedding thick fur
clinking rapidly
increasing the heart rate
requiring more food
A student places a plant in a dark room next to growth lamp, while providing sufficient water and nutrients to ensure the plant's growth and survival. The plant will likely respond-
bending towards the lamp
wilting and eventually dying
shedding all of its leave
increasing its rate of photosynthesis
Stunted growth of an animal can be a response to -
overexposure to sunlight
lack of nutrients in diet
eating a plant-based diet
living in a hot climate
Many birds migrate long distances when the seasons change. Which of the following is an environmental stimulus that would signal to the birds the changing seasons?
changes in the length of daylight
increase in the population of edible plants
decreased number of offspring per hatching event
increase in annual precipitation levels
Which of the following is a response to smelling food?
rapid blinking
excessive sweating
increased hunger
sensitivity to sound
While sitting in a room, a person notices that the temperature has become uncomfortably warm. The body will respond by-
shivering
sweating
twitching
vomiting
A predator chases a prey animal. The prey is likely experiencing all of the following EXCEPT -
rapid heartbeat
dilated pupils
increased sweating
onset of fever
Which of the following is a likely cause of vomiting?
ingesting spoiled food
cold temperatures
lack of water
excessive sunlight
Which plant would be wilted or limp?
A
B
The plant is following the light.
Phototropism
Thigmotropism
Hydrotropism
Geotropism
What term refers to a plant growing or moving away from a stimulus?
Touch
Dormancy
Tropism
Development
Which response is a result of an EXTERNAL stimulus?
Vomiting
Wilting
Fever
Phototropism
Thigmotropism
A plants growth response to gravity
A plants growth response to light
A plants growth response to touch
A plants growth response to water
Hydrotropism
A plants growth response to gravity
A plants growth response to light
A plants growth response to touch
A plants growth response to water
Downward growth of roots are _____________ response to gravity?
Positive
Negative
Neutral
There is no response
upward growth of stems are _____________ response to gravity?
Positive
Negative
Neutral
There is no response
What tropism is being depicted
Thigmotropism
Phototropism
Gravitropism
Hydrotropism
What makes a tropism positive or negative?
Positive = movement towards stimulus, Negative = movement away from stimulus
Negative = movement towards stimulus, Positive = movement away from stimulus
Who cares? It doesn't matter whether it is positive or negative
Positive = when a plant is happy, Negative = when a plant is sad
