Answer:
The first heart sound (S1) represents closure of the atrioventricular (mitral and tricuspid) valves as the ventricular pressures exceed atrial pressures at the beginning of systole (point a). S1 is normally a single sound because mitral and tricuspid valve closure occurs almost simultaneously.
Explanation:
Answer:
A. Wind
wind is a renewable resource because there is unlimited supply of it.
Explanation:
Answer:
b. carb (sugars)
Explanation:
plants make glucose through photosynthesis
<span>Most marine invertebrates are osmoconformers, which means that they maintain water balance through osmoregulation.</span><span> The osmoregulation enables animals to live in environments, such as freshwater and terrestrial habitats and
enables many marine animals to maintain internal osmolarities different from that of seawater.The an</span><span><span>imals
that expends energy to control their internal osmolarity because its body
fluids are not isoosm otic with the outside environment are called osmoregulators.</span> </span>