Ibet you have watched astronauts in the space station on television or on your computer. we see them; we hear them speak. how are the voices of astronauts transmitted back to earth? a) sound waves b) transverse waves c) mechanical waves d) longitudinal waves

Where do homologous chromosomes exchange genetic material through crossing over?               a.  chlorophyll    b.  centrosomes    c.  centromeres    d.  chiasma

Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants. d- food molecules are broken down in the cells if living things.

Which organism can most likely be classifild as domain bateria