A pyramidal shape in an age structure diagram represents a population with what?
a. logistic growth
b. exponential growth
c. rapid growth
d. stable growth
c. rapid growth
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The energy released in the mitochondrial electron transport chain is used to transport protons into the
A. mitochondrial matrix. B. cytoplasm. C. nucleus. D. endoplasmic reticulum. E. intermembrane space of the mitochondria.
Parasitic lampreys have
A) bony jaws. B) radial proportions. C) sucker-like mouths lined with teeth. D) a three-chambered heart. E) internal fertilization.
Neurotransmitter is synthesized by (i) _________, released into (ii) ________, and then it binds to neurotransmitter receptor localizing at the membrane of (iii) _______________.
a) (i) presynaptic neuron, (ii) synaptic cleft, (iii) postsynaptic neuron b) (i) postsynaptic neuron, (ii) synaptic cleft, (iii) presynaptic neuron c) (i) postsynaptic neuron, (ii) soma, (iii) presynaptic neuron d) (i) postsynaptic neuron, (ii) dendrite, (iii) presynaptic neuron
Molecules can be described as polar when _____.
A) they are long and thin B) the molecules have a distinct top and bottom C) the electrons in one or more covalent bonds are shared unequally D) they readily dissolve in oil or turpentine