Which of the following terms describes the dna-protein complexes that look like beads on a string?

1. chromatin
2. 30-nanometer fiber
3. histones
4. nucleosome

Indica el nombre y la fucion de los vasos sanguineos que entran y salen de los riñones

When plants use sunlight to make food, the energy of sunlight is

(select all the correct choose each statement that is scientific. - the opinions of randomly selected participants in a survey prove the idea that global temperatures are not increasing on earth. - the universe's average temperature and rate of expansion support the idea that it began as one super-dense and hot mass 13.8 billion years ago. - ocean tides are caused by the uneven gravitational pulls of the moon and sun on different parts of earth. - human life is more valuable than other forms of life on earth because humans are more intelligent than other organisms.