Biology Section 101: Origin Of Life & 102: History Of Life

isotopes – atoms of the same element that have a different number of neutrons
matter – anything that occupies space and has mass
nucleic acid – polymer of nucleotides; the genetic material of organisms.
Circulation – Refers to the movement of materials within cells or an organism. Can occur by simple diffusion or by complex organ systems.
Phrenology – the practice of reading the bumps on someone's head to predict the future
excretion – the removal of soluble waste materials
total lung capacity – The total amount of air that can fit in a person's lungs, which is the vital capacity, plus the residual capacity.
Pregnancy – Usually applied to a condition of female mammals, covering the period of time between fertilization and birth of offspring. Some put the beginning at the moment of implantation in the uterus rather than the moment of fertilization.
cladistics – biological classification system based on phylogeny; assumes that as groups of organisms diverge and evolve from a common ancestral group, they retain derived traits
vacuole – cell organelle that stores material such as water, salts, proteins, and carbohydrates
Inflammation of the liver
organelles – subcellular structures; well-defined, intracellular structures that perform specific functions for the cell
What are the advantages and disadvantages of organic farming? – – They avoid expensive pesticides and their disadvantages.
– They're smaller and more expensive.
hypotonic solution – A solution in which the concentration of solutes is less than that of the cell that resides in the solution
d) plants provide food and medicine for humans –
Function of Vacuole – Stores materials such as water, salts, proteins and carbs; helps plants support heavy structures like leaves
Life's Secret – Life needs DNA but DNA needs proteins to work and proteins need DNA to produce them.
Inflаmmаtiоn оf the liver
absorption spectrum – A graph plotting a pigment light light absorption.
Nucleolus – Organelle in a eukaryotic cell nucleus that produces ribosomes.
endoderm – The innermost embryonic germ layer, that eventually forms the lining of the digestive system, the bladder, and urethra.
mycelium – the part of the fungus responsible for extracellular digestion and absorption of the digested food
Isotonic – A solution, surrounding a cell, which has the same percentage of water and solutes as the cell. Water will move into and out of the cell at the same rate, maintaining equilibrium. Our cells try to maintain isotonic solutions for our cells, which maintains homeostasis

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