Which of the following is a change from a less condensed to a more condensed state of matter?
a. freezing
b. boiling
c. evaporating
d. melting

In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna. b) they study alleles that contain genes, which are chromosomes. c) they study chromosomes that contain genes, which are dna segments.

10. in which phase will crossing-over occur? a. mitosis b. metaphase ii c. prophase i d. meiosis ii

Which if the following best describes why invertebrates isn’t considered a scientifically valid word when classifying animals