What is the scientific name for a cat and dog?

Spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Which member of the following food chain will be least affected by ddt, a pesticide water pollutant, if bio-magnification is occurring? algae> zooplankton> crayfish> leopard frog> large mouth bass

Which of the following leukocyte is not correctly matched with its function? lymphocytes: immune response against viral infections eosinophil: bacterial macrophage monocytes: macrophage basophils: inflammation eosinophil: bacterial macrophage