which of these technological advances has improved flu vaccines? A. virus strains multiplied in cell cultures B. sonograms C. antiviral drugs D. blood typing

Evaporation occurs when a liquid changes phase into a gas. What is a good example of this process? A. ice melting in a glass of water B. water boiling in a pot on a stove C. soap bubbles bursting in a sink full of dishes D.

What two burnt-out stars does PSR B1629-26 b orbit? A light year and a red dwarf A pulsar and white dwarf A black dwarf and a burst A brown dwarf and the sun

Why are photosynthesis and cellular respiration important for living things?

Use density to identify an substance. A. unknown B. sink or float C. physical property

Describe two important functions served by earth's atmosphere

Which characteristic is not shared by eukaryotic cells and prokaryotic cells? A. membrane enclosed organelles B. enzyme controlled reactions C. cell membranes D. cytoplasm

How is energy released from atp molecule?

What is the relationship between an amino acid and a protein?

Which four molecules are the DNA

What are the three possible outcomes when the gametes of a non - disjunction meiosis combines with a normal gamete?