When a snake moves to a sunny place to keep warm, the snake is responding to what kind of stimulus?

What are the types of genetic recombination

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

What organelle other than the nucleus houses dna in a eukaryotic cell?