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22 questions
a detectable change in the physical or chemical structure of an organism's internal or external environment
stimuli
hormone
auxin
tropism
photoperiodism
chemicals that affect growth and development
stimuli
hormone
auxin
tropism
photoperiodism
a plant's growth response toward or away from a stimulus
stimuli
hormone
auxin
tropism
photoperiodism
a plant's response to seasonal changes in the length of night and day
stimuli
hormone
auxin
tropism
photoperiodism
a plant hormone that speeds up the rate at which plant cells grow and control a plant's response to light
stimuli
hormone
auxin
tropism
photoperiodism
a period when an organism's growth or activity stops
dormancy
metamorphosis
essential
absolutely necessary; extremely important.
dormancy
metamorphosis
essential
major body changes as an organism grows and develops into an adult
dormancy
metamorphosis
essential
Roots grow downward because of gravity. Gravity is a __________.
stimuli/stimulus
tropism
dormancy
metamorphosis
photoperiodism
Roots grow downward because of gravity. The growing of the roots downward is known as a __________.
stimuli/stimulus
tropism
dormancy
metamorphosis
photoperiodism
During winter, some animals and plants become very still and may even appear dead. However, they are not dead and they are not hibernating either. They are going into a state of _______________.
stimuli/stimulus
tropism
dormancy
metamorphosis
photoperiodism
Some plants only bloom during certain seasonal conditions. During these specific times of day and night length, this bloom response is called. . .
stimuli/stimulus
tropism
dormancy
metamorphosis
photoperiodism
Some insect larva/caterpillars form cocoons/pupa where their body will reform into a different shape, often with wings. This is known as a ___________.
stimuli/stimulus
tropism
dormancy
metamorphosis
photoperiodism
What might happen if a plant did not produce enough auxin hormone?
it might now grow as much
it might grow out even bushier than normal
it would quickly die
it would be taller than normal
Plant stems growing upward, against gravity
positive phototropism
negative gravitropism
positive gravitropism
Plant roots grow downward because of gravity
positive phototropism
negative gravitropism
positive gravitropism
Plant stems and leaves growing towards the sun or another source of light
positive phototropism
negative gravitropism
positive gravitropism
What three things impact plant growth the most?
nutrients (from the soil or special water from humans)
water
sunlight or another light source
a little gnome garden
The common/normal way an embryo finishes developing for a reptile.
Inside a leathery egg
Inside a hard shelled egg
Inside the mother
Soft, jelly-like eggs that must stay in water
The common/normal way an embryo finishes developing for a mammal.
Inside a leathery egg
Inside a hard shelled egg
Inside the mother
Soft, jelly-like eggs that must stay in water
The common/normal way an embryo finishes developing for a bird.
Inside a leathery egg
Inside a hard shelled egg
Inside the mother
Soft, jelly-like eggs that must stay in water
The common/normal way an embryo finishes developing for an amphibian and many fish.
Inside a leathery egg
Inside a hard shelled egg
Inside the mother
Soft, jelly-like eggs that must stay in water
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