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A greenhouse worker wants flower seeds to sprout in late winter. The seeds usually sprout in spring. The greenhouse worker should...
cells inside the seed grow and push the seed open
feeling less sleepy when the sun rises
bends and grows upward-phototropism
a hormone causes the shoots to grow in the opposite direction of gravity
the plant will not bloom
keep the seeds in a warmer location
a seedling's roots grown downward in response to gravity
fight or flight
A farmer plants seeds six inches deep in the soil. When the seedlings emerge, what will cause the young shoots to grow upward and out of the soil?
cells inside the seed grow and push the seed open
feeling less sleepy when the sun rises
bends and grows upward-phototropism
a hormone causes the shoots to grow in the opposite direction of gravity
the plant will not bloom
keep the seeds in a warmer location
a seedling's roots grown downward in response to gravity
fight or flight
What causes most seeds to open and begin sprouting?
cells inside the seed grow and push the seed open
feeling less sleepy when the sun rises
bends and grows upward-phototropism
a hormone causes the shoots to grow in the opposite direction of gravity
the plant will not bloom
keep the seeds in a warmer location
a seedling's roots grown downward in response to gravity
fight or flight
Which of the following is an example of positive geotropism in a plant?
cells inside the seed grow and push the seed open
feeling less sleepy when the sun rises
bends and grows upward-phototropism
a hormone causes the shoots to grow in the opposite direction of gravity
the plant will not bloom
keep the seeds in a warmer location
a seedling's roots grown downward in response to gravity
fight or flight
A student is investigating variables that affect plant growth. When the student turns a potted plant on its side the stem...
cells inside the seed grow and push the seed open
feeling less sleepy when the sun rises
bends and grows upward-phototropism
a hormone causes the shoots to grow in the opposite direction of gravity
the plant will not bloom
keep the seeds in a warmer location
a seedling's roots grown downward in response to gravity
fight or flight
Which does NOT cause the leaves of a plant to turn?
cells inside the seed grow and push the seed open
feeling less sleepy when the sun rises
bends and grows upward-phototropism
a hormone causes the shoots to grow in the opposite direction of gravity
the plant will not bloom
keep the seeds in a warmer location
a seedling's roots grown downward in response to gravity
fight or flight
Which of the following is an example of a response to something in the environment?
cells inside the seed grow and push the seed open
feeling less sleepy when the sun rises
bends and grows upward-phototropism
a hormone causes the shoots to grow in the opposite direction of gravity
the plant will not bloom
keep the seeds in a warmer location
a seedling's roots grown downward in response to gravity
fight or flight
A certain plant needs short days and long nights before it will bloom. If it is planted where nights and days are equal, what will probably happen?
cells inside the seed grow and push the seed open
feeling less sleepy when the sun rises
bends and grows upward-phototropism
a hormone causes the shoots to grow in the opposite direction of gravity
the plant will not bloom
keep the seeds in a warmer location
a seedling's roots grown downward in response to gravity
fight or flight
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