Lsu biology - Study guides, Class notes & Summaries

how do animals cells communicate through direct contact? - ANSWER cell junctions connecting the cytoplasms or cell - cell recognition from molecules protruding from surface of cell attaching to one another describe paracrine signaling - ANSWER -The transmitting cell secretes the local regulator (chemical signal) into the fluid surrounding the cells of a tissue. -The local regulator diffuses across the liquid. -The local regulator binds to protein receptors at the cell surface of the target...

Heredity the transmission of traits from one generation to the next Variation __________ is demonstated by the diffferences in appearance that offspring show from parents and siblings genetics ________ is the scientific study of heredity and variation genes __________ are the units of heredity and are made up of segments of DNA gametes genes are passed to the next generation via reproductive cellls called ________ (sperm and eggs) somatic cells humans have 46 chromosomes in the nucl...

organisms are composed of _______________ matter anything that takes up space and has mass matter a substance that cannot be broken down to other substances by chemical reactions example: hydrogen element a substance consisting of two or more elements in a fixed ratio example: water (H2O) compound the smallest unit of matter that still retains the properties of an element atom

organisms are composed of _______________ matter anything that takes up space and has mass matter a substance that cannot be broken down to other substances by chemical reactions example: hydrogen element a substance consisting of two or more elements in a fixed ratio example: water (H2O) compound the smallest unit of matter that still retains the properties of an element atom atoms are composed of subatomic particles. list the subatomic particles and their charges neutron (no charg...

How many quarters of the planet is covered with water? - ANSWER Three-quaters What is the average depth of the ocean? For every ___ meters depth increase, pressure increases___ atm - ANSWER 3800 meters. 10; 1 The deep sea is characterized by: - ANSWER Defined as the ocean below either 200 or 1000 meters. Low temperature, high hydrostatic pressure, and no sunlight. 2-4 degrees celsius What doesn't penetrate to the deep sea for photosynthesis? - ANSWER Sunlight

LSU Biology 1002 Exam 2 by Paul complete solution

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LSU biology 1201 exam #1 course requirement trial exam solution

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