Earth has seasons because the distance between earth and the sun changes the temperature of the sun changes it rotates on its axis as it moves around the sun its axis is tilted

What is a gene ? a) a section of a protein that codes for dna. b) the alternate version of a trait. c) the visible trait in the f1 generation. d) a section of dna that codes for a specific trait .

Select the word from the list that best fits the definition a system made of 25 satellites

Which scientific design has both practical limitations and limitations due to scale? studying the effect of bleach on the growth of mold spores exposing cultures of duckweed to different intensities of light observing the replication of dna molecules with a hand lens using colored marbles to model a cross between two colors of rabbits