Which contributions did johannes kepler make? check all that apply.

he revived aristotle’s model of the solar system.
he solved ptolemy’s model by proving elliptical orbits.
he proved galileo’s calculations were incorrect.
he determined that planets move faster when closer to the sun.
he discovered laws of planetary motion.

Sampling lake water for microscopic organisms is not as easy as it sounds when you want to both count and identify species. in a given water sample, your bacteria of choice can be rare or difficult to culture, particularly given the mixture of bacteria in a biofilm. which of the following culture media would be best for growing fecal coliforms when they are relatively less abundant than other bacteria in the lake? anaerobic culture medium enrichment culture medium complex culture medium basic culture medium

Which best describes meiosis? a. it produces cells that are identical to the original cell b. it is responsible for the replacement of damaged skin cells c. it is responsible for growth of the organism d. it produces male and female sex cells

Which of these parts of the membrane large moecules pass through it ?