Match the scientist with the correct statement. 1. astronomer "sea otters are on the endangered species list due to over-hunting for their beautiful fur." 2. geologist "a dinosaur mummy was found with much of its tissues and bones still encased! " 3. oceanographer "many schools in vermont are closed due to heavy snow, sleet, and rain." 4. meteorologist "black holes are a small sphere of densely packed matter."

You have a solution that contains phospholipid vesicles in a test tube. these vesicles have phospholipid bilayers, but do not contain any membrane transporters. you add a number of different molecules to the solution, and wait a period of time for them to equilibrate. if you could measure the concentration of each molecule, for which of the following would you expect to measure equal concentrations inside and outside of the vesicles? assume for this question that the overall osmolarity inside and outside the vesicles is the same (that is, there is no appreciable diffusion of water across the membrane). (select two answers) an amino acid with a hydrophobic side-chain a small non-polar molecule a negatively charged ion a small polar molecule a small lipid hormone

What are tissues? a groups of tissues that work together b basic units of structure and function c groups of cells that perform the same function d multiple organs that perform a major function

Compare the depth of field when focusing with low power and high power. which power has the greater depth of field?