Melissa is investigating how different types of music affect student heart rates. what is the dependent variable?

Which pedigree symbol is used to represent a female carrier of a recessive x-linked trait? поө0 || save and exit submit

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 abo controlling alleles could kim give her child