Question

identify the nonspecific immune response described.
✓ inflammation is characterized by heat, redness, swelling, and pain.
is the 1st line of defense that prevents pathogens from entering body.
x fever causes elevated internal temperatures making a less hospitable environment for pathogens.
inflammation
phagocytes are white bloods cells that try to consume pathogen.
skin

Explanation:

To solve this, we analyze each option:

For "is the 1st line of defense that prevents pathogens from entering body":

• The skin is the first line of defense (physical barrier) to stop pathogens from entering. Fever, Inflammation, and Phagocytes are part of non - first - line (innate but not first - line) or adaptive/innate immune responses after entry. So the correct option here is Skin.

For "causes elevated internal temperatures making a less hospitable environment for pathogens":

• Fever is an immune response where the body's internal temperature rises. This higher temperature inhibits the growth and survival of many pathogens. Inflammation is about heat, redness, swelling, pain at the site of infection, not systemic temperature rise. Phagocytes are cells that engulf pathogens, not related to temperature rise. Skin is a physical barrier. So the correct option here is Fever.

For "are white blood cells that try to consume pathogen":

• Phagocytes (like macrophages, neutrophils) are white blood cells that perform phagocytosis (engulfing and destroying pathogens). Inflammation is a response involving multiple factors (cytokines, increased blood flow etc.), not a cell type. Fever is a temperature - related response. Skin is a barrier. So the correct option here is Phagocytes.

Final Answers for each blank:

• For "is the 1st line of defense that prevents pathogens from entering body": Skin
• For "causes elevated internal temperatures making a less hospitable environment for pathogens": Fever
• For "are white blood cells that try to consume pathogen": Phagocytes

Answer:

To solve this, we analyze each option:

For "is the 1st line of defense that prevents pathogens from entering body":

• The skin is the first line of defense (physical barrier) to stop pathogens from entering. Fever, Inflammation, and Phagocytes are part of non - first - line (innate but not first - line) or adaptive/innate immune responses after entry. So the correct option here is Skin.

For "causes elevated internal temperatures making a less hospitable environment for pathogens":

• Fever is an immune response where the body's internal temperature rises. This higher temperature inhibits the growth and survival of many pathogens. Inflammation is about heat, redness, swelling, pain at the site of infection, not systemic temperature rise. Phagocytes are cells that engulf pathogens, not related to temperature rise. Skin is a physical barrier. So the correct option here is Fever.

For "are white blood cells that try to consume pathogen":

• Phagocytes (like macrophages, neutrophils) are white blood cells that perform phagocytosis (engulfing and destroying pathogens). Inflammation is a response involving multiple factors (cytokines, increased blood flow etc.), not a cell type. Fever is a temperature - related response. Skin is a barrier. So the correct option here is Phagocytes.

Final Answers for each blank:

• For "is the 1st line of defense that prevents pathogens from entering body": Skin
• For "causes elevated internal temperatures making a less hospitable environment for pathogens": Fever
• For "are white blood cells that try to consume pathogen": Phagocytes