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Let’s declare a variable named dat.       dat = 5.7 What type of variable is this?

True/false: In his book about urban pigeons, Colin Jerolmack argues that the pigeons at Father Demo Square facilitate human social interaction in that pigeons act as both a topic of conversation (they give people something to talk about) and a focus of attention (they allow people to comfortably share space without needing to constantly talk to one another).

30. Richard is the CEO of a company that makes and sells stylish hats. His employees unionized several years ago and are now demanding more generous benefits and higher wages. Richard thinks this will cut into profits, so he is trying to undermine the union by refusing to negotiate and even firing some of the leaders. Richard is engaging in  

The regulation of thyroid hormones by “deiodinases” depends on sufficiency in which nutrient?

Activity-dependent synaptic plasticity and memory formation in the adult brain have much in common with those during development for wiring the brain. True or false? A) True B) False

Which of the following statements explains why neurons that fire together wire together? Choose the correct option. A) A synapse formed by a presynaptic axon is weakened when the presynaptic axon is active at the same time that the postsynaptic neuron is weakly activated. B) A synapse formed by a presynaptic axon is strengthened when the presynaptic axon is active at the same time that the postsynaptic neuron is weakly activated. C) A synapse formed by a presynaptic axon is strengthened when the presynaptic axon is active at the same time that the postsynaptic neuron is strongly activated. D) A synapse formed by a presynaptic axon is weakened when the presynaptic axon is active at the same time that the postsynaptic neuron is strongly activated.

Which groups are at risk for deficiencies in multiple nutrients that we’ve covered in this section? (choose all that apply)

Neuronal structure develops in three major stages that include: [1], [2] , and cell differentiation.

Which of the following is correct? Choose the best answer.  A) Red muscle fibers have large number of mitochondria and enzymes, are fast to contract, and can sustain contraction. B) Fast fatigue-resistant (FR) fibers are white fibers with moderate strength and fast contractions. C) Fast fatigable (FF) fibers are fastest, strongest white fibers, mostly exist in antigravity muscles of the leg and torso. D) None of above is correct.

Which of the following processes help balance the number of presynaptic and postsynaptic neurons? Choose the best option. A) Cell proliferation B) Cell migration C) Cell death (e.g., apoptosis) D) Cell differentiation