Some drugs modulate the activity of ion channels. For example, Novocain somewhat inhibits the opening of sodium channels. What happens to the threshold of a sensory neuron if this drug is used?

Fossils are remains or evidence that organisms lived in the past. Ex: footprints, borrows, bones, body casts, etc) A: True B: False

20. Which of the following statements are accurate? A. Repolarization of a neuron results from potassium diffusing out of the cell. B. At rest, excitable cells (e. g. neurons) have a negative charge. C.

What is a Cellular respiration? background information

How do enzymes affect the energy needed for getting a reaction going in the cell?

List the following minerals in order of decreasing hardness apatite, calcite, corundum, feldspar

In what situation does anaerobic respiration take place? O A. When there is no nitrogen O B. When there is no ATP O c. When there is no oxygen O D. When there is no NADH

What is the best distinction between birds and other animals? A birds eat seeds B birds have amniote eggs C bird have feathers D birds can fly

A preterm newborn is noted to have hypotonia, apnea, bradycardia, a bulging fontanelle, cyanosis, and increased head circumference. these signs indicate the newborn has which complication

The organisms that breakdown organic wastes and remains of the dead into simpler substances that can be used by other organisms are known as

Technology can have good and bad affects. what is a bad effect spraying pesticides on crops with the use of airplanes?