What is the genotype ration between the cross yyrr x yyrr?

Twind is considered to be an abiotic factor because it.?

Asap what occurs after cytokinesis is completed at the end of meiosis 1?

Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism