gas exchange

lymph nodes

• are bean shaped and act as checkpoints where lymph is cleaned

• make up the lymphatic system's organs

• are not connected to the circulatory system

• are where white blood cells destroy pathogens like bacteria/viruses

Which are features of leaves of xerophytes? (tick all that apply)

• thick cuticle

• flat leaves

• hairs on leaves

• raised stomata

Fish have which type(s) of circulatory system?

• Open

• Closed

• Single Circuit

• Double Circuit

Moving water across the gills by swimming with an open mouth is known as:

• Boar ventilation

• Bull ventilation

• Passive ventilation

• Ram ventilation

During inhalation, PLEURAL pressure becomes _______ which __________ transpulmonary pressure, causing the lung to inflate.

• more negative, increases

• more negative, decreases

• less negative, increases

• less negative, decreases

In terms of oxygen delivery, which animal has the most efficient lung?

• Bird

• Amphibian

• Mammal

• Reptile

Type _____ pneumocytes secrete pulmonary surfactant to decrease the surface tension.

• I

• II

• III

• IV

Chronic high BP is called...

• Hypertrophy
• Atrophy
• Hypertension
• Hyperatrophy

What is the volume of one breath called?

• minute ventilation
• inspiratory capacity
• tidal volume
• vital capacity

Abscisic acid (ABA) is responsible for stomatal __________.

• opening

• closing