Question

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 the nervous system senses the biting flies and sends a signal to the muscular system to move.
b the circulatory system senses the biting flies and sends a signal to the nervous system to move.
c the muscular system senses the biting flies and sends a signal to the integumentary system to move.
d the integumentary system senses the biting flies and sends a signal to the circulatory system to move.
1)
which sequence best describes an interaction between the integumentary and excretory systems that helps maintain homeostasis?
f heart rate increases → blood vessels constrict → blood pressure increases
g blood vessel is damaged → platelets begin to clump → blood vessel ruptures
h blood sugar levels rise → pancreas secretes insulin → blood sugar continues to rise
j body temperature increases → glands release sweat → body temperature decreases
2)

Explanation:

Question 1

To determine the correct statement about body system interaction for repelling flies:

• The nervous system (sensory neurons) detects stimuli (biting flies). It then sends signals to the muscular system to initiate movements (ear twitching, etc.).
• Option B is wrong because the circulatory system doesn't sense stimuli; the nervous system does.
• Option C is wrong as the muscular system doesn't sense; it acts on signals.
• Option D is wrong as the integumentary system (skin) senses, but it sends signals to the nervous system, not circulatory, and movement is via muscular system. So A is correct.

To find the integumentary - excretory interaction for homeostasis:

• Integumentary system includes skin/glands, excretory (sweat glands are part of both, but excretory also involves waste removal).
• Option F: Heart/circulatory, not integumentary - excretory.
• Option G: Circulatory (platelets), not relevant.
• Option H: Endocrine (pancreas) and blood sugar, not integumentary - excretory.
• Option J: Body temp rises (stimulus), integumentary glands (sweat glands) release sweat (excretory function of sweating to cool), body temp decreases (homeostasis). This matches.

Answer:

A. The nervous system senses the biting flies and sends a signal to the muscular system to move.

Question 2