Match the following events with the appropriate stage/ process of cell division: centrosome movement homologous chromosomes separate dna exchange chromatids separate
a. prophase i
b. anaphase i
c. crossing over
d. anaphase ii
e. prophase ii
f. telophase i

All living organisms are composed of a. only one cell. b. at least 100 cells. c. at least three cells. d. one or more cells.

Which statement best describes a keystone species? o a. it has littlelmenetic variation. it has an extremely high population. 0 b. 0 c. it remains unaffected by all environmental changes. od. it has a strong influence on the ecosystem. 0 e. it's the first species to populate a new ecosystem.

Agenus is a taxonomic grouping that identifies a collection of species. when a scientist discovers a new species, how is this species assigned to a genus