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<span>(1)External (pulmonary)
respiration- Exchange of gases between the alveoli of the lungs and the blood
in pulmonary capillaries across the respiratory membrane. <span>(2) Pulmonary
Ventilation- inhalation and exhalation of air and happen the exchange of air between
the atmosphere and the alveoli of the lungs (3) Internal (tissue) respiration-.capillaries
and tissue cells. </span></span>
All living things are made of cells; the cell itself is the smallest fundamental unit of structure and function in living organisms.they were eventually found with a microscopy
Vascular plants have a vascular system while nonvascular plants have NO vascular system.
Explanation:
The vascular system is made of phloem – that transports food- and xylem- that transports water and minerals- in the higher plants. Examples of these higher plants are like trees and shrubs. These plants can take up water and nutrients from the soil and transport them up the plants to the leaves.
Lower plants have no vascular system (avascular). They mainly absorb food and water readily from their environment even through their leaves. This is why these plants are mainly found in humid areas like waterways, like canals. Examples of such lower plats are ferns and mosses.
Answer:
internal helical flagella allow the bacteria to twist its way through human tissue
Explanation: