Which is a reactant for the photosynthesis reaction

Which of the following is a good definition for the word adaptation? question 1 options: a trait that an organism survive and reproduce in its environment. a change in an organism's environment. the way in which animals obtain food. a temperature change that can cause the extinction of plants and animals.

In meiosis ii during anaphase ii which structures separated homologous chromosomes or sister chromatids

How can we use spectral lines of light coming from the superclusters to identify which is receding from earth at the slowest rate.