Coastline Community College BIO 100 QUIZ 4 1)The basic unit of the nervous system is The single long process that extends from a typical motor nerve cell is the     The input zone of a neuron is the     Neurotransmitters     The Pacinian corpuscle is used in detecting       A stretch receptor is classified as a   Hair cells are important in the sense of   The principal place in the human ear where sound waves are amplified by means of the vibrations of tiny bones is the     Hormones are distributed throughout the body by the     The primary purpose of the endocrine system is to   Some steroid hormones do not require a membrane receptor because they   Which gland secretes hormones that affect other endocrine glands?   The pituitary gland is controlled by the     The anterior pituitary secretions produce their effects in the   The pituitary hormone associated most directly with metabolic rate and with growth and development is     Which stage in development occurs first?   The heart, muscles, bones, and blood develop primarily from     Shortly after fertilization, successive cell divisions convert the zygote into a multicellular embryo during a process known as     During which of the following stages do cells of identical genetic makeup become structurally and functionally different from one another according to the genetically controlled developmental program of the species?   A group of individuals of the same species occupying a given area defines a(n)     The total number of individuals of the same species that occupy a given area at a given time is the   The average number of individuals of the same species per unit of surface area at a given time is the   All of the populations of different species that occupy and are adapted to a given area are referred to by which term?   A one-way relationship in which one species benefits at the expense of another is called     Which of the following is NOT characteristic of most parasites?   The weakest symbiotic attachment, in which one species simply lives better in the presence of another species that is relatively unaffected, is called     Gause's exclusion principle refers to     A community differs from an ecosystem in that the former does NOT include   In a natural community, primary consumers are     Which is a primary consumer?   The ultimate source of energy in a terrestrial ecosystem is     The amount of ultraviolet radiation hitting the Earth's surface is greatly reduced by which gas in the atmosphere?   When the burning of fossil-fuels in manufacturing plants gives off particulates and sulfur oxides, we have       Newly hatched baby geese follow any large moving objects to which they are exposed shortly after hatching