Answer:B) homologous chromosomes trade pieces of dna
Explanation:
Crossing over occurs between two homologous chromosome of sisters chromatid. Crossing over leads to exchange of genetic material between the two sister chromatids leading to recombination.
Answer:
Explanation:
The earth turns on its axis every day; it orbits the sun, just like all the other planets in our Solar System. When viewed from space, it turns counter-clockwise.
Because it rotates around the earth at the exact same speed as it rotates around its own axis, so that the same side of the moon is constantly facing the surface of the earth.
Tilt of the earth on its axis is responsible for season formation. The amount of sunlight obtained by various regions on earth surface is regulated by tilt. The places of earth that are facing the Sun and get direct sunlight experiences summers while the others which are facing away from the Sun experience winter season.
The correct answer for the question is A. Diffrences in heating
Answer:
Igneous rocks may be simply classified according to their chemical/mineral composition as felsic, intermediate, mafic, and ultramafic, and by texture or grain size.
Explanation:
Because im not an idiot jk becuase i just took a test on those.