Topic
Q:
1)
a population of 9,000 bacteria, what will the population be 672 hours from now?
Q:
6. In the carbon cycle, both terrestrial and aquatic organisms exchange
with the atmosphere.
A) sugar (C6H12O6)
B) oxygen gas
C) carbon monoxide
D) carbon dioxide
Q:
\begin{tabular}{l} 6. In the carbon cycle, both terrestrial and aquatic organisms exchang \\ with the atmosphere. \\ \hline A) sugar (C6H12O6) \\ B) oxygen gas \\ C) carbon monoxide \\ D) carbon dioxide \end{tabular}
Q:
5. When numerous food chains link to each other in an ecosystem, it is
known as a(n)
A) food pyramid
B) food web
C) food cluster
D) feeding guild
Q:
4. Energy flows through an ecosystem because when one form of energy is
transformed into another form, and there is always a loss of some energy as
heat.
A) True
B) False
Q:
The enzyme acetylcholinesterase causes acetylcholine toA) decompose.
B) synthesize.
C) bond to actin.
D) be secreted.
E) form cross-bridges.
Q:
The skeletal muscle organelles that actually contracts is (are) theA) sarcolemma.
B) sarcomere.
C) transverse tubules.
D) myotubules.
E) myofibrils.
Q:
3. Energy flow begins when producers take inorganic nutrients from th
physical environment.
A) True
B) False
Q:
Production and accumulation of ___ in muscle cells leads to muscle fatigue.
(A) ATP
(B) glucose
(D) lactic acid
(D) glycogen
Q:
Skeletal muscle fibers differ from "typical cells" in that these muscle fibersA) lack a plasma membrane.
B) have many nuclei.
C) are very small.
D) lack mitochondria.
E) all of the above
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