Sing the information on slide 24, explain how dna evidence supports the known biology of the seven cone snails.

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

Why are current extinctions of concern to enviromentalists?

What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees