Read the introduction and provide an explanation for why one group of plants grew better than the other group of plants.

Each pair of clay balls represents two planetesimals. if each planetesimal is composed of the same material and is separated he the same distance, which pair experiences the frayed gravitational attraction?

If bacteria are much too small to see, what is one reason why can we see colonies in the petri dishes that have plenty of food to eat after only a few days?

Which of the following would you not find in a bacterial cell? dna cell membrane golgi apparatus ribosomes