Positive thigmotropism is a response in plants in which they can move and grow toward an object the plant comes into physical contact with, usually curling around the object.

This response of the shoot system benefits the plant by allowing the plant to -
Students studying the interaction among the reproductive parts of flowering plants make the graphic organizer shown.
Which terms best complete the numbered blanks in the flowchart?
A flower that has both male and female reproductive structures is shown.
Which statement best describes an interaction that will allow a flowering plant to reproduce by self-pollination?
A chart of some plant systems and functions is shown.
Which system interactions are dependent on the plant's ability to respond to the direction of light?
Students set up a controlled experiment by growing the same type of seedlings (plants) in two different locations. After a period of time, the students observed the seedlings and recorded their observations in the table shown.
Which caused the shoots of the seedlings on the windowsill to bend toward the window?
Water, sugar, and other important nutrients need to be transported from one part of a plant to another. Which statement correctly describes the interaction of the root and shoot systems during nutrient transport?
Which statements about the transportation of these substances within the plant is true?
Flowering is a process that occurs in many plants to ensure reproductive success. Which statement MOST DIRECTLY describes the interactions needed for flowering to occur?
Which plant response would best aid a plant in maximizing and retaining water acquired during a drought?
In the late 19th century, Charles Darwin and his son performed a series of experiments on young grass seedlings to observe the plants' response to sunlight. They grouped the seedlings as shown in the list
They removed the tips of one group of seedlings.
They placed opaque caps over the tips of a second group of seedlings.
They placed transparent caps over the tips of a third group of seedlings.
The results of the experiment are shown in the diagram.
Based on the diagram, which statement BEST best supports the results of the experiment?
The diagram below shows changes in blood pressure over time.
Vasodilation and vasoconstriction occur because blood---
Biting flies can transmit diseases and cause loss of blood for animals in nature. Horses have developed behaviors to repel biting flies such as ear twitching, head tossing, leg stomping, and tail swishing.
Which statement best describes the interaction between body systems that allows horses to repel biting flies?
A feedback mechanism in the human body is shown.
Based on the diagram, which two systems interact to maintain homeostasis?
How do other body systems interact with the endocrine system to regulate body processes?
Select TWO correct answers.
The integumentary system helps provide oxygen to initiate hormone production throughout the body.

Which set of statements describes how body systems interact after an injury?
Which statements support the answers to part A.