Please try to answer as much as u can if u answer all of them ill give u brainiest thanks and 5 stars~

Where do homologous chromosomes exchange genetic material through crossing over?               a.  chlorophyll    b.  centrosomes    c.  centromeres    d.  chiasma

Many kangaroo rats live in the sonoran desert of the southwestern united states. they have a variety of adaptations for living in the desert. under which circumstance would the kangaroo rats of the sonoran desert be most likely to develop new adaptations by natural selection?

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain