The photic zone extends to a depth of

What are some possible short and long term medical concerns for crew members on longer space exploration trips

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone

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.