Carnivorous plants evolved because which of the following nutrients is often extremely limited in their habitats?
A. carbon
B. nitrogen
C. iron
D. O2
E. CO2
Answer: B
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The energy in chemical bonds is what type of energy?
a. kinetic b. potential c. atomic d. nuclear e. thermal
It has been discovered that the genetic material is PROTEIN.
a. true b. false
How does ocean fishing affect marine ecosystems today?
A. Because the oceans are so large, they are the one remaining natural ecosystem that is not susceptible to extinction. B. Ocean fishing has resulted in overexploitation in 11 of the 15 major oceanic fishing areas. C. Only 2 of the 15 major oceanic fishing areas are considered overexploited. D. There has been an increase of bottom-dwelling ocean fish, but schools of swimming fish have declined. E. Bottom-dwelling fish are frequently overfished by trawling, but schools of swimming fish that can easily get away are increasing.
A typical AA battery has a potential of 1.5V. One can think of the potential in a neuron as having similarities to that of a battery.If you were to compare the resting potential of a neuron to a battery, which way is the battery oriented?
A. Positive terminal pointing toward the axon, negative terminal toward the dendrite B. Both terminals inside the cell soma C. Positive terminal pointing toward the dendrite, negative terminal toward the axon D. Positive terminal inside of the cell, and negative terminal outside E. Positive terminal outside of the cell, and negative terminal inside