Plant growth towards light is known as _______________________.

_____________ is the movement of an organism in response to a stimulus.

________________ are a powerful growth hormone produced naturally by plants. They are found in shoot and root tips and promotes cell growth and elongation of the plant.

___________ signals dehydration of the plant. Stomata closes to retain water.

____________ means stimulation by oxygen.

__________________ means stimulated by chemicals.

_______________ means stimulated by moisture.

____________ is a migration along a gradient of temperature.

_______________ is the response of an organism to physical contact.

_______________ is the movement of an organism in response to sound

______________ means stimulated by gravity.

________________ means stimulated by electric current

_________________ means to become stiff.

________________ stimulated by pressure.

________________ stimulation by wind.

______________ causes the ripening of the fruits that results in a yellow color. (Example: bananas.)

_______________ shedding of leaves and fruits.

______________ is the name for a region of tissue within the plant that actively promotes cell division.

___________________ are a group of hormones that promote cell division in plant roots and shoots and the growth of buds. Most ________________ are produced in the meristem of the roots.

Which part of this plant is displaying negative phototropism?

Which part of this plant is demonstrating positive phototropism?

Which tactic movement is this plant displaying?

What chemical is causing this banana to become yellow or ripe?

What type of tropism are these plant roots displaying?